What To Wear Under A Jiu Jitsu Gi?

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Jiu jitsu is a popular martial art that involves grappling, submission holds, and ground fighting. To practice this sport, you need to wear a gi or a uniform that comprises a jacket, pants, and a belt. Apart from the gi, you also need to wear suitable attire underneath to ensure maximum comfort and hygiene during training sessions. In this article, we shall discuss what to wear under a jiu jitsu gi.


Should you wear a t-shirt under a jiu jitsu gi?

The decision to wear a t-shirt under a Jiu-Jitsu gi is largely a matter of personal preference. Some practitioners choose to wear a t-shirt underneath their gi for various reasons, while others prefer not to. Here are a few considerations to help you make your decision:

  1. Comfort: Wearing a t-shirt can provide an additional layer of comfort by absorbing sweat and reducing friction between your skin and the gi. This can be particularly beneficial during intense training sessions.
  2. Hygiene: A t-shirt can help absorb sweat and prevent it from directly contacting the gi, which may help maintain better hygiene. It can also be easier to wash and replace a t-shirt compared to the gi, which may require less frequent cleaning.
  3. Gripping: Wearing a t-shirt might make it slightly more difficult for your training partner to grip your collar or sleeves, as the fabric of the t-shirt can create some extra friction. This can be an advantage or disadvantage depending on your training goals and strategies.
  4. Uniform regulations: Some Jiu-Jitsu academies or competitions may have specific rules regarding what can be worn under the gi. It’s important to check with your instructor or consult the guidelines of the organization you train with to ensure compliance.


What material should you wear under a jiu jitsu gi?

When practicing Jiu-Jitsu or any other martial art that involves wearing a gi, it is common to wear a specific type of clothing underneath. The purpose of this undergarment is to provide comfort, hygiene, and to prevent excessive sweat from directly contacting the gi. Here are some options for what to wear under a Jiu-Jitsu gi:

  1. Rashguard: A rashguard is a tight-fitting, moisture-wicking shirt typically made of nylon or polyester. It is commonly used in Jiu-Jitsu to protect the skin from friction and rashes, and it helps to keep you dry during training.
  2. Compression shorts/spats: Compression shorts or spats are form-fitting, elastic shorts that cover the thighs and often extend down to the knees. They provide a comfortable base layer, offer muscle support, and prevent chafing.
  3. Athletic underwear: If you prefer a simpler option, you can wear moisture-wicking athletic underwear. Look for underwear made from breathable fabrics that help to keep you dry and comfortable.

It’s important to choose clothing made from materials that are breathable, moisture-wicking, and allow for freedom of movement. Avoid wearing cotton-based clothing as it tends to absorb moisture and can become heavy and uncomfortable during training. Remember to always check with your specific Jiu-Jitsu gym or instructor for any specific clothing requirements they may have.


Can you wear compression shorts under a jiu jitsu gi?

Yes, it is common for practitioners of jiu-jitsu to wear compression shorts under their gi. Compression shorts are designed to provide support and compression to the muscles, reducing muscle fatigue and enhancing performance. They can also help prevent chafing and provide an additional layer of protection. Wearing compression shorts can be particularly beneficial during intense training sessions or competitions, as they can help improve blood flow, reduce muscle soreness, and provide some level of insulation. However, it’s important to note that different academies or competitions may have specific rules or guidelines regarding attire, so it’s always a good idea to check with your instructor or event organizers to ensure that wearing compression shorts is allowed.


What kind of underwear should you wear under a jiu jitsu gi?

When it comes to underwear, it is advisable to wear moisture-wicking, breathable, and tight-fitting boxers or briefs. Loose underwear can cause chafing and discomfort during rolling, while cotton material can become heavy and uncomfortable due to sweat. It is best to wear compression underwear made of materials like nylon, spandex, or polyester.


Should you wear socks under a jiu jitsu gi?

It is not necessary to wear socks under your jiu-jitsu gi unless you have a medical condition that requires you to wear them. Socks can increase friction or cause your feet to slip inside the training shoes, leading to potential injuries. In case you need to wear socks, choose moisture-wicking, thin, and breathable socks that fit snugly.


What are the benefits of wearing suitable attire under a jiu-jitsu gi?

Wearing suitable attire under your jiu-jitsu gi offers several benefits. Firstly, it can prevent chafing, skin irritation, and scratches caused by rubbing against the gi’s rough material. Secondly, it can absorb sweat and prevent body odor, leading to greater hygiene and comfort. Thirdly, tight-fitting clothes like compression shorts can provide support for muscles and reduce fatigue during grappling. Lastly, the right attire can enhance your overall performance by keeping you dry, comfortable, and focused on your training sessions.



To conclude, wearing suitable attire under your jiu-jitsu gi is essential to ensure maximum comfort, hygiene, and safety during training. Moisture-wicking, breathable, and antimicrobial clothes like t-shirts, rash guards, compression shorts, and tight-fitting boxers or briefs are ideal for wearing under a gi. Avoid wearing loose-fitting or cotton clothes that can become heavy and uncomfortable due to sweat. Remember, the right attire can enhance your performance and help you achieve your goals in jiu-jitsu.

Maxim Tzfenko

Maxim Tzfenko

"I live and breath Martial Arts"

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