Tired of your T-shirt sticking to your body, riding up during grappling or getting torn to pieces? A professional MMA rashguard is not just an upgrade – it is a game-changer for training, comfort and safety on the mat.
What is a rashguard?
A rashguard is a tight-fitting compression garment made of polyester and spandex, originally developed for surfers. The martial arts world quickly adopted the technology – and with good reason. Unlike a cotton T-shirt, a rashguard does not soak up sweat like a sponge. It wicks moisture away from the skin, keeps you dry and gives active muscle support throughout the session.
The materials make all the difference:
- Moisture wicking – sweat is drawn away from the skin and evaporates quickly
- Elasticity – spandex gives full freedom of movement in every direction
- Durability – reinforced flatlock seams withstand hard grappling without tearing
- Sublimated print – designs and colours do not fade, no matter how many washes
Why wear a rashguard for MMA and grappling?
A rashguard gives three decisive advantages for any MMA athlete:
1. Hygiene – your first line of defence
On the mat, close contact is unavoidable. The rashguard acts as a barrier between your skin, the mat and your training partner. It considerably reduces the risk of skin infections such as ringworm and staph – something most serious clubs expect you to take seriously. Wearing a rashguard is a sign of respect for yourself and the people you train with.
2. Performance – stay dry and focused
A wet cotton shirt becomes heavy, clammy and constantly gets in the way. The technical fabric in an MMA rashguard keeps you drier and lighter throughout the session. The tight fit ensures the garment does not catch on fingers or limbs – neither your own nor your opponent's. That way you can focus 100% on technique.
3. Protection – built for combat
The material protects the skin against friction from the mat, which otherwise causes painful mat burns. The compression keeps the muscles warm and ready, which can help reduce the risk of minor strains and injuries. A good rashguard is designed to last for years of hard training.
Rashguard vs. a regular training top
Here is the simple truth:
- Cotton – absorbs sweat, becomes heavy and clammy, tears easily, poor hygiene
- Standard compression top – better than cotton, but not made for the heavy demands of martial arts
- MMA rashguard – moisture-wicking, durable, flatlock seams, sublimated design, built for grappling
The conclusion is clear: for MMA, BJJ and submission wrestling, a dedicated rashguard is the only right choice.
How to choose the right rashguard
Fit
A rashguard should fit tightly, but never restrict your freedom of movement. Look for models with a silicone band at the waist – this stops the top from riding up during intense grappling. Always check the manufacturer's size guide, as sizes vary between brands such as Venum.
Long vs. short sleeves
- Long sleeves – maximum skin protection, preferred in BJJ and submission wrestling
- Short sleeves – better ventilation, popular for stand-up MMA training and in warm surroundings
Many athletes keep both in their training bag and choose based on the day's session.
Competition rules
Going to compete in BJJ under IBJJF rules? Then the choice of colour is crucial – the rashguard must show your belt rank (e.g. at least 10% blue for blue belts). For MMA competitions the rules are often more flexible, but always check with the organizer.
Care
- Rinse in cold water immediately after training
- Wash at 30 degrees, inside out
- Use a mild detergent – avoid fabric softener
- Never tumble dry – the heat ruins the elasticity
- Hang to air dry, avoid direct sunlight over time
Frequently asked questions about MMA rashguards
Can I wear a rashguard under a BJJ Gi?
Yes, and it is strongly recommended. The rashguard acts as a hygienic layer that absorbs sweat, keeps the Gi cleaner and reduces friction against the skin during intense grappling.
What is the difference between a rashguard and a compression top from a sports shop?
An MMA rashguard has reinforced flatlock seams and more durable material than a standard compression top. It is specifically constructed to withstand the friction and strain of grappling – something a regular compression top is not made for.
How many rashguards do I need?
At least as many as the number of training sessions per week. If you train three times a week, you should have three in rotation. Good hygiene on the mat starts with clean gear.
Which brands are best?
Venum is one of the most recognised brands in the martial arts world, known for high quality and iconic design. At Combat Store you will find a carefully selected range from top brands – so you can train with gear you can trust.
What are spats, and are they worn with a rashguard?
Spats (compression tights) are the martial arts answer to compression tights and are very often worn together with a rashguard, especially in No-Gi BJJ and MMA. The combination gives full body coverage and compression for the whole body.
