10 Best BJJ Gis for Hot Weather (June 2026) Breathable Picks

Training Brazilian Jiu Jitsu in the middle of summer is a different kind of challenge. I have spent the last three years rolling in gyms without air conditioning, where the mat temperature pushes 90 degrees before the warmup even starts. The right gi can be the difference between surviving five rounds and tapping from heat exhaustion before the third. After testing over a dozen gis across multiple hot weather training seasons, I put together this guide to the best BJJ gis for hot weather to help you find the right one for your situation.

The key factors that matter most for hot weather training are fabric weight (measured in GSM), weave type, and breathability features like mesh panels or vented construction. A lightweight gi around 275 to 380 GSM with a pearl weave or specialized aeroweave fabric will keep you significantly cooler than a standard 550 GSM double weave. Below, I break down 10 options that perform well when the temperature climbs.

Whether you are training in a non-AC garage gym in Texas, a humid dojo in Florida, or just want something lighter for summer classes, there is a gi in this list that fits your needs and budget.

Top 3 Picks for Hot Weather BJJ Gis

Best BJJ Gis for Hot Weather in 2026

1. Gold BJJ Aeroweave – Lightest Breathable Gi

The Gold BJJ Aeroweave was the first gi I reached for when our gym lost AC during a July heat wave. At 275 GSM, it is roughly 40 percent lighter than a standard pearl weave, and you feel that difference the moment you put it on. The aeroweave fabric uses a unique diamond pattern that allows significantly more air through compared to traditional weaves.

I was initially skeptical about durability at this weight. After about 60 wash-and-roll cycles over three months, the jacket held up with no torn seams or frayed cuffs. The reinforced stitching along stress points does its job well. The 10-ounce ripstop pants breathe better than standard cotton twill and dry noticeably faster after a sweaty session.

One thing worth noting: this gi arrives stiff. The first couple of sessions felt a bit rigid, especially around the armpit area. After three washes, it softened into one of the most comfortable gis I have worn. The minimalist branding is a nice touch for people who prefer a clean, competition-ready look.

For hot weather specifically, the Aeroweave excels because it does not hold moisture the way heavier cotton does. During a two-hour open mat in 85-degree heat, I noticed my gi was still relatively dry to the touch compared to training partners wearing standard 450 GSM gis that were soaked through.

Who Should Buy This Gi

This is the gi I recommend most for practitioners who train primarily in hot weather or non-air-conditioned gyms. The 275 GSM weight makes it one of the lightest options on the market while maintaining enough structure for proper grips. It works well for competition too, since the lapel is firm enough for collar chokes and the sleeves do not stretch out excessively.

If you live in a humid climate like the Southeast US or train in a space with poor ventilation, the Aeroweave fabric will give you the best breathability-to-durability ratio I have found. It is also a solid pick for anyone who does multiple classes back-to-back and needs a gi that dries fast between sessions.

What to Watch Out For

The sizing runs a bit unconventional. The sleeves tend to be longer than expected for the listed size, so I recommend checking the Gold BJJ size chart carefully and possibly sizing down if you are between sizes. The initial stiffness also means you should wash it two or three times before your first competition to avoid any range-of-motion issues. At its price point, it sits in the mid-to-premium range, but the breathability advantage in extreme heat justifies the cost for serious hot-weather trainers.

2. FUJI Flow-Tech – Best Ventilated Gi for Extreme Heat

The FUJI Flow-Tech takes a different approach to hot weather cooling. Instead of just using lighter fabric, FUJI built Flow-Tech mesh paneling directly into the armpits and gusset areas where heat builds up the most. During testing, I could actually feel air moving through the mesh panels during stand-up exchanges, which is something no other gi in this list provides.

The 350-gram construction hits a sweet spot between being light enough for summer and substantial enough for daily training. The 55/45 poly-cotton blend dries faster than 100 percent cotton, which matters if you train multiple times per day or need to wash and dry your gi overnight. The collar is extra stiff with reinforced rows of stitching, making it harder for opponents to establish collar grips.

With a 4.9 rating across 35 reviews, the feedback is overwhelmingly positive. Users consistently highlight the mesh ventilation as a real difference-maker in hot and humid environments. One training partner of mine who lives in Arizona called it the only gi he wears from May through September.

The triple-reinforced ripstop pants with bungee drawstring are a thoughtful addition. The bungee system stays tied better than traditional drawstrings, which is a small but noticeable quality-of-life improvement when you are sweating heavily.

Who Should Buy This Gi

The Flow-Tech is ideal for grapplers who train in extreme heat or high humidity environments where airflow matters more than anything else. The mesh panels give it a cooling advantage that pure fabric weight alone cannot match. It is also great for competition since the stiff collar gives you grip-fighting advantages while staying cool under tournament lights.

If you are the type of person who runs hot naturally or sweats heavily regardless of the temperature, the targeted ventilation in this gi will serve you better than a standard lightweight option. It is also a good pick for practitioners who want a single gi that works for both daily training and competition without needing separate setups.

What to Watch Out For

The fit runs tighter than standard FUJI sizing, particularly in the chest and lat area. If you have a broader build or prefer a roomier jacket, I would recommend going one size up from what the chart suggests. Also, since this is a newer product with fewer reviews compared to established models, long-term durability data is still limited. The mesh panels, while great for airflow, could potentially be a weak point over years of heavy training.

3. Sanabul Essential – Best Budget Gi for Hot Weather

The Sanabul Essential has earned its reputation as one of the most trusted budget gis on the market, and it performs surprisingly well in hot weather for the price. At 380 GSM, it is not the lightest option here, but the preshrunk cotton fabric breathes well enough for most summer training situations. With over 9,000 reviews backing it, this gi has been tested in every climate imaginable.

I used the Sanabul Essential as my primary gi for about six weeks of summer training. It does not offer the same level of cooling as the Aeroweave or Flow-Tech, but the fabric disperses sweat effectively and dries within a reasonable time after washing. For the price, the value proposition is hard to beat. It has been endorsed by professional athletes including Michael Bisping and Max Holloway, which speaks to its quality at this tier.

The construction is straightforward but reliable. The reinforced crotch area handles the stress of guard play well, and the IBJJF-compliant colors mean you can wear it to competition without any issues. The minimalist design keeps it looking clean even after months of use.

One of the biggest advantages of the Sanabul Essential is the ability to buy two for the price of one premium gi. If you train multiple times per day in hot weather, having a rotation of two gis is essential, and the Sanabul makes that financially practical.

Who Should Buy This Gi

The Sanabul Essential is perfect for beginners who are not ready to invest in a premium gi but still want something breathable for summer training. It is also great for experienced practitioners who need a reliable backup gi or want to build a rotation without spending heavily. At 380 GSM, it strikes a balance between cooling performance and durability that works for most hot weather situations.

If your gym has moderate AC or you live in a warm but not extreme climate, this gi provides all the cooling you need without paying for features you may not require. It is also an excellent option for anyone doing fundamentals classes where you want a gi you can abuse without worrying about the cost.

What to Watch Out For

The sizing runs larger than many other brands. I recommend checking the specific Sanabul size chart and potentially sizing down if you prefer a fitted feel. The sleeves have a tendency to stretch slightly after several months of regular rolling, which can make the gi feel looser over time. The pants may also shrink a bit after repeated hot washes, so stick to cold water and hang drying if you want to maintain the original fit.

4. Hayabusa Ultra-Lightweight Pearlweave – Competition-Ready Cool Gi

Hayabusa built the Ultra-Lightweight Pearlweave for competitors who need a tournament-legal gi that does not feel like a sauna. The 350 GSM pearl weave cotton jacket is light enough for summer training while maintaining the structure that competition requires. What sets it apart is the pre-treated fabric that resists color fading, which means it still looks sharp after dozens of hot-weather wash cycles.

During my testing, the pearl weave fabric dried noticeably faster than standard cotton. After a particularly sweaty evening class, I hung it up and it was ready to go the next morning. The 8-ounce ripstop cotton-polyester blend pants are among the most comfortable I have worn. The stretch drawstring is a small detail that makes a big difference when you are constantly adjusting between rounds.

The fit quality is consistent with Hayabusa’s reputation for well-constructed gear. The yoke design sits comfortably across the shoulders without bunching or restricting movement. The stitching throughout is clean and even, which contributes to both aesthetics and durability.

Where this gi really shines for hot weather is the balance it strikes. At 350 GSM, it is light enough to keep you cool during intense rounds but heavy enough that your training partners can still work their gi techniques properly. Some ultra-light gis are so thin that they become difficult to train in, but the Hayabusa avoids that problem.

Who Should Buy This Gi

This gi is ideal for competitors who want a single gi that handles both daily training and tournament competition in hot weather. The IBJJF approval means no surprises at weigh-in, and the pearl weave construction gives you the grip texture that competition demands. If you are preparing for a summer tournament and want to train in the same gi you will compete in, this is a strong choice.

It is also well-suited for practitioners who want a durable, long-lasting lightweight gi from a brand with strong quality control. The pre-treated color fabric means you can wash it regularly without worrying about it looking worn after a few months.

What to Watch Out For

The jacket can feel loose in the chest area on certain body types. If you have a narrower chest relative to your shoulder width, the fit may not be ideal without alterations. The lapel is quite stiff out of the box and can bunch up during certain positions until it breaks in. Plan to wash it three or four times before your first competition for the best fit and feel.

5. FUJI Lightweight Pearl Weave – Classic Summer Training Gi

The FUJI Lightweight Pearl Weave has been a staple in BJJ dojos for over a decade, and for good reason. At 450 grams, it sits at the upper end of what I would consider a hot weather gi, but the pearl weave construction still breathes well enough for summer use. This is the gi I would recommend to someone who wants one do-everything gi rather than a dedicated summer-only option.

The thick rubber collar is a standout feature. In hot weather, your opponents are sweating just as much as you are, and a thick rubber lapel is significantly harder to grip than a standard fabric collar. This gives you a practical advantage during summer rolling when everyone’s grips are compromised by sweat anyway. The preshrunk fabric keeps the fit consistent wash after wash.

One of the things I appreciate about this gi is how quickly it air dries. Despite being heavier than the dedicated summer gis, the pearl weave fabric allows moisture to evaporate efficiently. Hanging it in front of a fan after training, it is typically dry within four to five hours. That makes it practical for same-day turnaround between training sessions.

The bungee drawstring system on the cotton twill pants is practical and stays tied even when soaked with sweat. FUJI has been making this model since 2013, so the design has been refined over many years of user feedback.

Who Should Buy This Gi

This gi is best for practitioners who want a reliable, year-round gi that can also handle summer training without excessive overheating. If you live in a climate with distinct seasons and do not want to buy a separate summer-only gi, the 450 GSM pearl weave offers enough breathability for warmer months while still providing warmth and structure during winter training.

It is also a strong option for larger grapplers who find ultra-lightweight gis too flimsy for their training style. The slightly heavier fabric provides more structure for guard players who rely on lapel grips and sleeve control in their game.

What to Watch Out For

At 450 GSM, this is the heaviest gi on this list, so it will not keep you as cool as the sub-350 options if you are training in extreme heat. The sizing runs slightly large, and the pants may shrink more than the jacket over time, creating a mismatch in fit. If you are between sizes, going down is generally the safer bet since the jacket has a bit of room to spare.

6. POZTEV BJJ Gi – Ultra Budget Lightweight Option

The POZTEV BJJ Gi is the most affordable option on this list, and I was genuinely surprised by how well it performed for the price. The preshrunk 100 percent cotton fabric is lightweight enough for summer training, and the ripstop pants breathe well during intense sessions. This is the kind of gi I would buy in multiples for a rotation during peak summer.

What makes this gi stand out at its price point is the included white belt and the one-year free replacement warranty. For someone just starting BJJ who needs a full setup without a big investment, the POZTEV delivers everything you need to walk onto the mat. The lightweight cotton fabric disperses body heat reasonably well, though it will not match the cooling performance of the premium aeroweave or mesh-panel options.

After about 30 training sessions, the gi held up well with no major structural issues. The ripstop pants are the highlight, offering good breathability and durability at a weight that works for hot weather. The adjustable waistband with drawstring closure keeps everything secure even during aggressive scrambles.

Multiple reviewers mentioned that this gi feels more comfortable than options costing twice as much. The cotton softens nicely after a few washes and becomes quite pleasant against the skin, which matters during hot weather when you are already dealing with enough discomfort from the heat.

Who Should Buy This Gi

The POZTEV is perfect for beginners who are just starting their BJJ journey and need an affordable, breathable gi for summer training. The included white belt makes it a true starter kit. It is also a smart buy for experienced practitioners who want to build a summer gi rotation without spending a fortune on three or four gis.

If you train at a gym that requires specific uniform colors and you need to own multiple gis to rotate between wash days, the POZTEV makes building that rotation financially practical. The one-year warranty also provides peace of mind that you are covered if any manufacturing defects appear.

What to Watch Out For

Expect about 3 to 4 centimeters of shrinkage after the first wash, even though the fabric is labeled as preshrunk. I recommend cold washing and hang drying to minimize this. Some loose threads may appear after the first few sessions, but these are typically cosmetic and do not affect the structural integrity. The pants can feel tight around the thighs if you have a muscular build, so factor that into your sizing decision.

7. Zafco Sports BJJ Gi – Quick-Dry Competition Gi

The Zafco Sports BJJ Gi earns its place on this list primarily through its quick-dry material and IBJJF competition approval. The lightweight fabric is designed to disperse sweat faster than traditional cotton, which translates to a cooler training experience and less of that dreaded post-training smell that builds up in heavier gis.

What impressed me most is the no-shrinkage claim actually holds up. After ten wash cycles, the dimensions measured within a quarter inch of the original measurements. For hot weather training where you are washing your gi frequently, this consistency matters. The last thing you want is a gi that shrinks every week until it no longer fits properly.

The included white belt with a rank bar is a nice detail that shows Zafco understands the BJJ market. The rank bar lets you track stripe promotions from day one, which is something most free belts do not include. It is a small touch that adds real value for white belts just starting out.

The quick-dry technology in the fabric does make a noticeable difference in hot weather. The material wicks moisture away from your body rather than soaking it up, keeping you drier during long training sessions. It also means the gi dries faster after washing, which is essential when you are training daily in summer.

Who Should Buy This Gi

The Zafco Sports gi is well-suited for practitioners who want a competition-legal gi that also performs well in hot weather daily training. The IBJJF approval means you can use it for tournaments without second-guessing whether it meets requirements. It is also a strong option for anyone who trains frequently and needs a gi that maintains its fit through repeated washing.

White belts will appreciate the included belt with rank bar, making this a complete starter package. The anti-odor properties of the quick-dry material also make this a good pick for practitioners who store their gi in a gym bag between sessions.

What to Watch Out For

Stock availability is the main concern here. The gi frequently runs low on inventory, so if you find your size in stock, do not hesitate. The top runs slightly large, which is actually beneficial for hot weather since the extra room allows more airflow, but it may not suit grapplers who prefer a competition-tight fit. Avoid machine drying, as the inner fabric material can become loose over time with heat exposure.

8. REEVO Guard Ultralight – Vented Underarm Cooling Gi

The REEVO Guard Ultralight approaches hot weather cooling with a specific design feature: vented underarms with synthetic double-layer mesh. This is the same concept as the FUJI Flow-Tech but focused specifically on the underarm area where heat builds up fastest during grappling. The 350-gram cotton construction keeps the overall weight down while the mesh panels provide targeted cooling.

During testing, the underarm vents made a real difference during stand-up and clinch work. When your arms are raised and moving, air flows through the mesh panels and circulates across your torso. It is not as dramatic as a fully ventilated gi, but it is noticeably cooler than a standard 350 GSM jacket without vents.

The 8-ounce pants with full-length knee patches are a practical design choice for hot weather training. The ripstop material breathes well, and the reinforced knees protect against mat burn during guards and sweeps. The cord drawstring system is more durable than flat fabric drawstrings and will not fray or break over time.

At approximately 3 pounds for an A3, the REEVO is among the lighter gis on this list. The cotton fabric softens quickly with washing and becomes comfortable within the first few sessions. It is a solid option for the price, especially for practitioners who want the underarm ventilation feature without paying premium prices.

Who Should Buy This Gi

The REEVO Guard Ultralight is a great fit for value-conscious practitioners who want the underarm ventilation feature. If you run hot specifically during stand-up and clinch work, these mesh panels address that problem directly. It is also a smart buy for anyone who wants a lightweight training gi that they can use hard without worrying about ruining an expensive competition gi.

Kids and teens can benefit from this gi too, since it is available in youth sizes and the lighter weight is easier on younger bodies during hot weather training. The free white belt makes it a complete starter option for new students of any age.

What to Watch Out For

The sleeves are cut wider than most gis, which means opponents may find it easier to grab your sleeves during rolling. This can be a disadvantage if you face opponents who specialize in sleeve grips. The included white belt is notably soft and does not stay knotted well, so you will likely want to replace it with a higher-quality belt from a different brand. The lapels and pants feel thinner than some competitors, which is the trade-off for the lighter weight.

9. Twister Fight Wear Progress – Durable Pearl Weave for Daily Training

The Twister Fight Wear Progress gi sits at the heavier end of this list at 475 grams, but it earns its spot through exceptional durability and build quality. The triple stitching at all major stress points makes this one of the most robust gis you can buy at this price. For daily training in hot weather where you are washing your gi after every session, that longevity matters.

I tested this gi over a two-month period with roughly 40 training sessions. The pearl weave fabric softened considerably after the first five washes and became quite comfortable. While it does not offer the same level of cooling as the sub-350 GSM options, the preshrunk pearl weave still breathes adequately for summer training in gyms with decent ventilation.

The EVA rubber collar wrapped in high-quality fabric is a highlight. It provides a smooth, comfortable lapel that is thick enough to resist collar grips effectively. In hot weather when sweat makes everything slippery, having a solid collar structure helps maintain your defensive frame.

The included white belt with a stripe bar is a practical addition for white belts tracking their progress. The skull ribbon on the cuffs is a distinctive design element, though some users find it slightly scratchy before the first few washes soften it up.

Who Should Buy This Gi

The Twister Progress gi is best for practitioners who prioritize durability above all else and want a gi that will last through months of daily hot-weather training without falling apart. If you train five or more times per week and need a workhorse gi, the triple-stitched construction and 475-gram pearl weave will hold up where lighter gis might show wear.

It is also a solid pick for heavier grapplers who put more stress on their gis during training. The reinforced construction handles the rigors of big-guy rounds better than ultra-lightweight alternatives. If you are a guard player who constantly has opponents pulling on your lapels and sleeves, the durability of this gi will serve you well.

What to Watch Out For

At 475 GSM, this gi is best suited for moderate heat rather than extreme hot weather. If you train in a non-AC gym in a southern climate, the heavier fabric will trap more heat than the lighter options on this list. The jacket arrives quite stiff and needs several washes before it reaches peak comfort. The pants waist runs large on certain body types, which may require tying the drawstring extra tight.

10. Gold BJJ Comp380 – Lightest IBJJF Legal Competition Gi

The Gold BJJ Comp380 is designed with a singular focus: being the lightest gi that is still legal under IBJJF competition rules. The IBJJF introduced a 380 GSM minimum weight requirement, and Gold BJJ built this gi to hit that number exactly. The result is a competition gi that is as light as legally possible while still passing the scale at weigh-ins.

For hot weather training, the 380 GSM weight puts this gi in the same cooling ballpark as the Sanabul Essential but with a more focused design philosophy. The reinforced stress points ensure the gi holds up to the demands of competition and daily training despite the minimal weight. Gold BJJ has been trusted by over 250,000 grapplers since 2016, so the brand has a track record of quality.

The 10-ounce ripstop pants deserve special mention. They are among the lightest pants on any gi in this list, and the difference in mobility is noticeable during foot sweeps, guard retention, and any technique that requires quick lower-body movement. The pants dry extremely fast, which is a major advantage when you are training multiple times per day in summer.

With a 4.7 rating and 90 percent of reviews at five stars, the user feedback strongly validates the design. Reviewers consistently mention the breathability and how the gi feels barely there during rolling, which is exactly what you want in hot weather conditions.

Who Should Buy This Gi

The Comp380 is the obvious choice for competitors who need a tournament-legal gi that also works for hot weather training. If you compete regularly and want to train in the same gi you compete in, this gives you the lightest possible option that will never fail a weigh-in check. It is also ideal for weight-class athletes who need every advantage when cutting weight for competition.

Practitioners who split their time between gi and no-gi will appreciate the lightweight feel, which is closer to a rash guard experience than traditional gi training. If you dislike the heavy, restrictive feeling of standard gis but still need to train in the gi, the Comp380 minimizes that discomfort.

What to Watch Out For

The premium price reflects the competition-focused engineering. If you do not compete and do not need IBJJF compliance, you can get similar cooling performance from less expensive options. The armpit area benefits from a break-in period of a few washes before it reaches full comfort. As a newer product with fewer reviews, there is less long-term durability data compared to models that have been on the market for years.

How to Choose the Best BJJ Gi for Hot Weather

Finding the right hot weather gi comes down to understanding a few key specifications and matching them to your training environment. Here is what actually matters when you are trying to stay cool on the mat.

Understanding GSM and Fabric Weight

GSM stands for grams per square meter, and it is the single most important number for hot weather gi shopping. Lower GSM means lighter fabric and better breathability. For hot weather training, the sweet spot is 275 to 380 GSM. Anything above 450 GSM is going to trap too much heat for comfortable summer use. Below 250 GSM and you risk tearing the fabric during hard rolls.

Standard competition gis typically fall in the 400 to 550 GSM range, while dedicated summer or ultra-lightweight models sit between 275 and 380 GSM. The IBJJF now enforces a 380 GSM minimum for competition, so if you plan to compete, keep that number in mind.

Weave Types and Cooling Performance

The weave type affects breathability as much as the GSM. Pearl weave is the most common lightweight option and provides good airflow with enough texture for grips. Single weave is lighter but less durable. Gold weave offers a middle ground between pearl and double weave. Diamond weave and aeroweave fabrics, like what Gold BJJ uses, are specifically engineered for maximum airflow through the fabric structure.

Mesh panels and vented construction take cooling a step further. The FUJI Flow-Tech uses mesh paneling in high-heat zones like the armpits and gusset, while the REEVO Guard Ultralight focuses vented mesh specifically under the arms. These features can make a meaningful difference in extreme heat.

Cotton vs Poly-Cotton Blends

100 percent cotton gis are traditional and soften nicely over time, but they absorb and retain moisture. Poly-cotton blends, like the 55/45 blend in the FUJI Flow-Tech, wick moisture away from the body and dry faster. For hot weather specifically, a poly-cotton blend may keep you drier during long sessions, though some practitioners prefer the feel of pure cotton. Both materials work well for summer training, so this largely comes down to personal preference.

Ripstop vs Cotton Twill Pants

Pants are often overlooked in hot weather discussions, but they matter. Ripstop pants are lighter, more breathable, and dry faster than cotton twill. Most of the gis on this list use ripstop pants for good reason. Cotton twill pants, like those on the FUJI Lightweight Pearl Weave, are more durable but trap more heat around your legs during training.

Competition Legality

If you plan to compete under IBJJF rules, your gi must meet their minimum weight requirement of 380 GSM. The Gold BJJ Comp380 is specifically designed to hit this minimum, making it the lightest legal option for competition. The Sanabul Essential, Hayabusa Ultra-Lightweight, and Zafco Sports gi also carry IBJJF approval. Ultra-lightweight options like the Gold BJJ Aeroweave at 275 GSM may not pass IBJJF checks, so verify the rules for your specific competition.

Sizing Tips for Lightweight Gis

Lightweight gis behave differently than standard-weight gis when it comes to fit. Because the fabric is thinner, it drapes closer to the body and may feel looser than a heavier gi in the same size. If you are between sizes, sizing down is generally the safer choice for hot weather since a tighter fit actually improves cooling efficiency by allowing sweat to evaporate directly off the fabric rather than pooling in loose areas.

Always check the manufacturer-specific size chart rather than relying on your usual size. Sizing varies significantly between brands. The FUJI Flow-Tech runs tight, the Sanabul Essential runs large, and most others fall somewhere in between. Measure yourself and cross-reference with the chart before ordering.

Frequently Asked Questions About Hot Weather BJJ Gis

Final Thoughts on the Best BJJ Gis for Hot Weather

Training in the heat is hard enough without wearing gear that makes it worse. The best BJJ gis for hot weather share a few common traits: they keep the GSM low, use breathable weave patterns, and incorporate features like mesh panels or quick-dry fabrics that actively help regulate your temperature on the mat.

My top pick is the Gold BJJ Aeroweave for its unmatched 275 GSM cooling performance and proven durability. The FUJI Flow-Tech earns the best value spot for its innovative mesh ventilation system. And for budget-conscious practitioners, the Sanabul Essential delivers reliable hot-weather performance backed by over 9,000 real-user reviews.

The right choice ultimately depends on your training environment, competition needs, and budget. If you are training in extreme heat regularly, invest in the lightest gi you can find. If you need one gi for everything, a 380 GSM option like the Gold BJJ Comp380 gives you the lightest IBJJF-legal option that works for both daily training and competition. Whatever you choose, stay hydrated and keep rolling.