What to Wear to Jiu Jitsu Class
Showing up to your first class in the wrong gear is almost a Jiu Jitsu rite of passage. Someone always arrives in basketball shorts with pockets, a baggy T-shirt, or a brand-new gi that still feels like cardboard. If you’re wondering what to wear to jiu jitsu class, the short answer is this: wear what your academy requires, keep it clean, and choose gear that lets you move, grip, and train safely.
That answer gets clearer once you know whether you’re doing gi, no-gi, or a trial class. The best clothing for drilling armbars, shrimping across the mat, and surviving your first few rounds of sparring is not always the same. A beginner also has different needs than someone training five days a week and rotating between fundamentals, competition class, and open mat.
What to wear to jiu jitsu class depends on the class type
The first thing to figure out is whether your class is gi or no-gi. Plenty of academies offer both, and some beginner programs start with gi classes only. Others let new students try either format.
For a gi class, you usually need a gi and a belt. Under the gi jacket, most people wear a T-shirt or rash guard, although academy rules vary. Some schools are relaxed about a plain athletic shirt under the gi top, especially for a first class. Others strongly prefer a rash guard because it stays in place better when you’re pummeling for underhooks, getting cross-faced, or repeatedly resetting from side control.
For a no-gi class, the standard setup is a rash guard or fitted athletic shirt with grappling shorts. Some students also wear spats under their shorts. The big thing here is fit and safety. Loose clothing gets grabbed, twisted, and bunched up when you’re scrambling out of turtle or defending a body lock, and shorts with pockets or zippers can scratch your training partners.
If it’s a trial class, ask the academy what they want you to wear before you show up. A lot of gyms will loan out a gi, while others will tell you to come in a T-shirt and shorts for your first session. That one quick message saves a lot of guesswork.
What to wear to your first gi class
If the school requires a gi and has loaners, take the loaner if you need to. There is no prize for buying the wrong gi before you understand the academy’s dress code. Some gyms prefer white gis for regular class. Some allow white, blue, and black. Some have their own team gi policy for competition classes or promotions.
A good beginner setup is simple: gi, belt, and a fitted layer underneath if your academy allows or prefers it. The gi should feel secure but not restrictive. If your sleeves are so short that your wrists are fully exposed before warm-ups are done, or your pants stop halfway up your shins every time you stand in someone’s closed guard, the fit is off.
Expect the gi to feel different from regular workout clothes. It is heavier, hotter, and built to be grabbed. That matters when someone is breaking your posture with a collar grip, feeding your lapel around your back, or dragging your sleeve during guard retention drills. A cheap-feeling gi can still work for beginners, but comfort, stitching, and fit become more important the more often you train.
Under the gi, a rash guard is usually the safest bet if you own one. It stays close to the body and does not bunch up when you’re in mount escapes or drilling takedown entries. A plain athletic shirt can work for a first class, but baggy cotton gets uncomfortable fast once it is soaked with sweat.
Do you need a belt right away?
If you borrow a gi from the academy, they will usually give you a white belt for class. If you buy your own gi, many come with a belt, but not all do. For a first session, don’t overthink belt quality. You just need the correct rank and a belt that stays tied reasonably well while you learn.
What to wear to a no-gi class
No-gi is less formal, but the clothing matters just as much. The safest and most common combo is a rash guard and grappling shorts. If you do not own a rash guard yet, a snug athletic shirt is usually acceptable for a trial class. Avoid loose tank tops and oversized shirts. They ride up constantly when you’re inverting, hip escaping, or defending front headlock positions.
Shorts should be lightweight and free of pockets, metal tips, buttons, and zippers. That is not just gym etiquette. Those features can catch fingers and toes or scrape someone during scrambles. If your shorts would make sense for pickup basketball, they may not be ideal for Jiu Jitsu.
Many students wear compression shorts or spats under their shorts. That extra layer helps with comfort and coverage, especially during fast movement. If you train takedowns, wrestle up from seated guard, or spend a lot of rounds in leg entanglements, you will probably appreciate having gear that stays put.
Rash guard or T-shirt?
A rash guard is better for regular training. It moves with your body, holds up to friction, and does not turn into a wet towel halfway through class. That becomes obvious during hard rounds, especially if your gym does shark tanks, king-of-the-mat rounds, or long positional sparring from back control and mount.
A T-shirt is fine for many first classes if the academy allows it. Just make sure it fits close to the body and does not have anything stiff, thick, or abrasive on it.
What not to wear to Jiu Jitsu class
This part matters almost more than what to wear. Some gear is inconvenient. Some is unsafe.
Do not wear shorts with pockets, zippers, or buttons. Do not wear anything with exposed metal or hard plastic. Skip hoodies, cropped tops that constantly shift, and loose gym clothes that tangle during grappling. Jewelry should come off before class, including rings, necklaces, earrings, and watches.
Shoes do not go on the mat unless your academy has a very specific rule for a certain drill. You will want flip-flops or slides for walking around off the mat, especially to the bathroom, but you train barefoot unless told otherwise.
Also, keep your gear clean. A great rash guard that smells like last week’s open mat is still the wrong choice. Clean clothes, trimmed nails, and basic hygiene are part of training, not extra credit.
Academy rules matter more than general advice
Every gym has its own culture around uniforms. Some are very relaxed for beginners. Others are strict from day one. That is why the best answer to what to wear to jiu jitsu class is sometimes, “Ask your academy first.”
A fundamentals class at a laid-back local school might welcome a new student in a plain athletic shirt and board-short-style training shorts. A competition-focused room may expect ranked rash guards for no-gi rounds and specific gi colors for regular classes. Kids classes can be different too, especially when parents are buying gear for fast-growing children and trying not to replace everything every few months.
If you are visiting another academy for an open mat or drop-in, checking their rules ahead of time is just good etiquette. You do not want to be the only person in a sleeveless top when everyone else is in academy-approved gear.
How to build a practical training wardrobe
If you are just starting, you do not need a huge pile of gear on day one. You need enough to train consistently and wash everything between sessions.
For gi training, one gi can get you started if you train once or twice a week and wash it right away. If you train more often, a second gi makes life much easier. For no-gi, having at least two rash guards and two pairs of grappling shorts is a good baseline. Once you start stacking fundamentals class, open mat, and weekend drilling, extra gear stops being a luxury and starts being laundry management.
Fit also changes based on preference. Some people want a tighter competition-style rash guard. Others prefer a little more room for daily training. The same goes for gi cuts. A heavier gi may feel more durable and structured, while a lighter gi is usually more comfortable for hot gyms, summer classes, and long sessions.
If budget matters, prioritize the pieces you will use the most and the items tied to safety. A solid pair of pocket-free shorts and a dependable rash guard will take you through a lot of no-gi classes. A well-fitting gi that meets academy rules will cover your gi days. You can add backup gear as your schedule gets more serious.
One useful rule is to dress for the training you are actually doing. If class includes takedown rounds, wear gear that stays in place when you shoot, sprawl, and scramble. If you are drilling berimbolos, inversions, or leg lock entries, tight-fitting gear becomes even more practical. If it is a beginner gi class focused on posture, grips, and guard passing, comfort and academy compliance matter more than anything flashy.
The best outfit for Jiu Jitsu is not the one that looks the coolest in the locker room. It is the one that lets you train hard, move freely, and be a good partner on the mat. Start with your academy’s rules, keep your gear simple and clean, and adjust once you know how often and how you like to train.
