What to Wear and Bring to Your First Martial Arts Class

Of all the things that keep people out of a fight gym, this is the smallest one — and it still stops people cold. You don't want to show up in the wrong thing, look like you tried too hard, or get told at the door that you needed equipment nobody mentioned. So you put it off, or you open a tab and start price-checking gloves you don't own yet.

Here's the short version: for your first class you buy nothing. You wear clothes you already own, you bring a water bottle, and the gym lends you anything specialized. That's the whole answer. The rest of this guide is the honest detail — by discipline, plus the hygiene basics that actually matter and why.

If you also want the full picture of what day one feels like — the nerves, the soreness, whether you'll spar — that lives in our companion guide, Your First Week on the Mat. This page is the gear half, gone deep.

The one rule that covers everything: buy nothing to start

The single most common beginner mistake isn't wearing the wrong shorts. It's spending a few hundred dollars on a gi, gloves, wraps, and shin guards before the first class — and then discovering the gym had loaners the whole time, or that the cut you bought doesn't fit how you actually train.

Don't pre-shop. Walk in with workout clothes and a water bottle. After a couple of weeks, once you know you're staying and you've felt the difference between brands on real equipment, then you buy — and you'll buy the right thing because you'll know what you want. Reputable gyms lend trial gear precisely so the cost of finding out is zero. At KD MMA, your trial gear is covered; you don't put money down to try a class.

What to wear: grappling (Brazilian jiu-jitsu, wrestling)

For Brazilian jiu-jitsu and any grappling, the wardrobe rule is about safety and grip, not style.

• Fitted clothes, no hardware. A snug athletic t-shirt or rash guard and shorts or leggings. The key word is no zippers, buttons, snaps, or pockets — they catch fingers and toes during a roll and can cause real injuries. Loose, baggy clothing gets grabbed, tangled, and pulled over your head; fitted clothing stays out of the way.
• A rash guard if you have one. Not required for a trial, but a fitted rash guard protects your skin from mat burn and keeps clothing from riding up. A plain compression shirt does the same job for day one.
• Do I need a gi? Not to start. Many grappling classes run no-gi (rash guard and shorts), and for gi classes we lend one for your trial. Don't buy a gi until you've trained a few times and know your size and your preference. If you arrive in regular workout clothes, you'll fit right in.
• Flip-flops or slides. This one surprises people. Bare feet stay on the mat; the second you step off it — to use the bathroom, to grab water — you put on sandals. Walking off the mat barefoot and back on is exactly how the floor picks up the things you don't want on it.
• Trim your fingernails and toenails short. Long nails scratch and cut training partners during grips and scrambles. This is the easiest courtesy there is, and coaches notice when you've done it.

What to wear: striking (Muay Thai, boxing, kickboxing)

For Muay Thai and boxing, you have more freedom — the clothes just need to let you move and sweat.

• Athletic clothes that breathe. Shorts or athletic pants and a t-shirt or tank. Muay Thai trains barefoot, so leave the shoes at the edge of the mat; many boxing gyms let you train in clean flat-soled shoes. Skip thick, restrictive joggers — you'll overheat fast once the pad rounds start.
• A cheap mouthguard. A basic boil-and-bite mouthguard from a sporting-goods store costs a few dollars and is worth bringing if you have one. You won't be sparring on day one, but it's the one inexpensive personal item worth owning early — for hygiene reasons, a mouthguard is yours alone and never shared.
• Hand wraps and gloves — the gym lends these. This is where beginners over-shop the most. You do not buy gloves before your first class. We lend gloves for your trial. Wraps protect your wrists and knuckles, and if the wrapping process looks confusing at first, that's normal — a coach will wrap you, or you can use slip-on quick wraps until you learn. When you're ready to buy your own, you'll know whether you want bag gloves, sparring gloves, or both.
• No jewelry, and tie long hair back. Rings, chains, and watches come off before pad work. It's about your safety and your partner's.

Muay Thai vs. boxing: the small differences

They're close, but not identical:

• Muay Thai is barefoot, and your shins are in play — front kicks, roundhouse kicks, the clinch. You'll want loose-but-not-baggy shorts so your hips and knees move freely. Shin guards exist, but the gym provides them for the rare day-one drill that needs them; don't buy a pair yet.
• Boxing is footwork-first, often in flat shoes, and it's all hands. Day one is mostly stance, movement, and the bag or pads. Wraps and gloves are the only specialized gear, and again — those are lent.

If you're not sure which to try, our programs page lays out all of them, and you can always start with one and cross-train later. The clothes you'd wear to either are basically the same.

A few questions we get a lot

Glasses or contacts? Contacts if you have them — glasses get knocked off in grappling and aren't safe in striking once pads come out. If you only wear glasses, tell the coach; you'll be kept in drills where it's not an issue on day one. Prescription sports goggles exist for grappling, but that's a later purchase, not a day-one requirement.

What do women wear? The same athletic clothes as anyone: fitted shirt or rash guard and shorts or leggings for grappling, breathable shorts and a top for striking. A supportive sports bra under a fitted top is the practical setup. There's no special "women's gear" you need to buy to start — and if you'd feel more comfortable in a women's or beginners class for your first one, just ask. We'll point you to the right session.

Can I just wear leggings and a hoodie? Leggings, yes. The hoodie comes off — drawstrings, kangaroo pockets, and loose fabric are exactly the hardware-and-bagginess problem we flagged for grappling, and you'll overheat in striking. Layer something fitted underneath and you're set.

What to bring (every discipline)

Short list. Don't overpack a first class.

• A water bottle. You'll need it. The pace is real.
• A small towel. For sweat, and to keep your space clean.
• Sandals or slides (especially for grappling — for walking off the mat).
• A mouthguard if you have one (striking).
• A change of clothes if you're heading somewhere after — you'll sweat through what you came in.

That's it. No bag full of gear, no shopping trip, no membership required to walk through the door for a trial.

Hygiene basics — and why they're not optional

Mat etiquette can read like fussiness until you understand what's behind it. Combat sports put your skin directly against other people's, and skin infections are a documented, real risk — in wrestling they account for roughly one in ten time-loss issues, per data compiled by the National Athletic Trainers' Association. The hygiene rules aren't there to make you feel watched; they're how a clean room stays clean for everyone in it.

• Show up clean, and shower right after. Don't sit around in sweaty gear after class. A quick shower as soon as you can is the single most effective habit for staying healthy in a contact sport.
• Wash your gear after every session. Rash guards, gis, wraps, shorts — every time, not "when it smells." A wet gym bag is the worst place to leave training clothes.
• Cover any cut or scrape with a bandage before you train, and stay home if you have something contagious. Showing up sick or with an open, oozing skin issue puts the whole room at risk, and good gyms will (politely) send you home.
• Keep your mouthguard yours. Never share it. Rinse it, store it dry, replace it when it wears out.
• Sandals off the mat, bare feet on it. Worth repeating because it's the rule beginners forget most.

None of this is hard. It's the same instinct as wiping down a shared machine at a regular gym — just more important when the "equipment" is another person.

Frequently asked

What do I wear to my first martial arts class? Athletic clothes you already own. For grappling, fitted shirt and shorts or leggings with no zippers or pockets. For striking, breathable shorts and a t-shirt. Add a water bottle and a towel and you're set.

Do I need to buy a gi before my first BJJ class? No. Many classes run no-gi in a rash guard and shorts, and for gi classes we lend one for your trial. Wait until you've trained a few times before buying your own.

Do gyms lend gloves and gear for a trial? Yes. At KD MMA we lend gloves and any specialized gear you need for your first class. You don't buy striking gear before you start.

What should I bring to my first class? A water bottle, a small towel, sandals for walking off the mat (grappling), and a mouthguard if you have one (striking). Nothing else.

Why no zippers or pockets for grappling? They catch fingers and toes during rolls and can cause injuries, and loose clothing gets grabbed and tangled. Fitted, hardware-free clothing keeps everyone safe.

Do I need a mouthguard on day one? You won't spar on day one, but a cheap boil-and-bite mouthguard is the one inexpensive personal item worth owning early. It's yours alone and never shared.

How much should I spend before starting? Close to nothing. Wear what you own and let the gym lend the rest. Buy your own gear after a couple of weeks, once you know you're staying and you know what fits how you train.

Start at KD MMA, Glendale

The gear question is the easiest hurdle of your first week to clear, and now you've cleared it: wear what you own, bring a water bottle, and let us cover the rest. Buy nothing until you know you're staying — and you'll buy smarter for waiting.

Come try a class at our Glendale headquarters, 555 Riverdale Dr, Suite #C. Book a free trial on our contact page or call us at (747) 231-5550, and if you want the full play-by-play of day one before you show up, read Your First Week on the Mat.

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