top of page
  • Writer's pictureBJJ Report | Matthew Tropp

Why wear a rash guard in BJJ or MMA?

No Gi Jiu JItsu
Why wear a rash guard in BJJ or MMA?

Rash guards are a must-have for any BJJ practitioner. They not only protect your skin from mat burns and other injuries, but they also help to keep you cool (and help slow the cool down process) during training. So, why wear a rash guard in BJJ? There are plenty of reasons, but here are just a few:

1. To prevent mat burns and other injuries. 2. To keep you cool and comfortable during training. 3. To show off your BJJ pride! (Okay, maybe that's not the most important reason, but it is a bonus!) 4. To help prevent getting ringworm or other communicable viruses. 5. To show belt rank and represent your academy. 6. To protect your skin from the sun's harmful rays (yes, even indoors). 7. To not get a dose of slimy sweat from your opponent while training! YUK! 8 Rash guards can also help prevent you from cooling down too fast. 9. And last but not least, to look good while doing it! What kind of communicable viruses can a rash guard help prevent you from getting? Some communicable viruses that a rash guard can help to prevent include: - Ringworm - Staph infection - Herpes simplex virus - Influenza - Human papillomavirus (HPV) - Methicillin-resistant Staphylococcus aureus (MRSA) So, not only can rash guards help to prevent mat burns and other injuries, but they can also help keep you from getting sick! That's definitely a good enough reason to make sure you always wear one when training BJJ.

rear naked choke displayed by BJJ practitioners
What are rash guards made of?

What are rash guards in BJJ made of? Most rash guards are made from a polyester and spandex blend. This material is stretchy and comfortable, yet durable enough to stand up to the rigors of BJJ training. The fabric is also breathable, which helps to keep you cool and comfortable during even the most intense training sessions. Rash guards come in a variety of colors, designs, and sizes. You can find ones that represent your favorite BJJ academy or that show off your belt rank. Or, you can simply choose one that looks cool and makes you feel good when you wear it. Why IBJJF does not allow you to wear a rash guard?

(from a popular LLM)

the International Brazilian Jiu-Jitsu Federation (IBJJF) prohibits the use of rash guards in tournaments for a few reasons:

  1. Uniform Standards: The IBJJF has specific uniform guidelines that competitors must adhere to during tournaments. This includes wearing a fitted, short-sleeved, or sleeveless, form-fitting shirt, typically called a "Gi" or "kimono" top for men, and a Gi top or a sports bra for women. Rash guards don't fit into these guidelines as they are typically long-sleeved and not designed to be worn under a Gi.

  2. Grip and Control: Rash guards, especially long-sleeved ones, can provide additional friction and make it harder for opponents to grip the fabric of the uniform, potentially affecting the dynamics of matches. By disallowing rash guards, IBJJF aims to maintain a consistent playing field and prevent any unfair advantage that might arise from variations in attire.

  3. Tradition and Culture: Brazilian Jiu-Jitsu (BJJ) has deep roots in tradition and culture, and the IBJJF often aims to preserve these aspects of the sport. The traditional Gi uniform has been a part of BJJ since its inception, and the IBJJF's uniform rules reflect this tradition.

It's worth noting that rules and regulations may evolve over time, so it's essential to consult the most recent IBJJF rulebook or reach out to the organization directly for the latest information on uniform guidelines and tournament regulations. So, while you can't wear a rash guard in IBJJF competition, you should definitely make sure to always wear one when training. There are too many benefits to rash guards to ignore, so make sure you always have one handy the next time you hit the mat! Train Safe and train often.

Matthew Tropp - BJJ Report

1,483 views0 comments

Related Posts

See All


bottom of page