Introduction – Why Choosing the Right Gear Matters
Brazilian Jiu-Jitsu (BJJ) is an intense and physically demanding martial art that requires practitioners to wear the right gear for comfort, flexibility, and performance. While the focus is often on choosing the perfect gi, what you wear underneath is equally important. Many practitioners wonder whether they should wear shorts, compression gear, or rash guards under their gi and which options provide the best experience during training.
Bravo BJJ is offering Custom BJJ shorts in different colors and styles. These high-quality shorts are designed for durability, flexibility, and breathability, ensuring that every practitioner feels comfortable during intense rolling sessions.
This guide will explore the best options for under-gi wear, answer common questions, and help you choose the right gear for your needs.
What to Wear Under a BJJ Gi? (Gracie Jiu-Jitsu & Modern Preferences)
One of the most frequently asked questions is: What should you wear under a BJJ gi?
Traditionally, practitioners in Gracie Jiu-Jitsu wore only a gi and underwear. However, modern training preferences have evolved to include compression wear, rash guards, and BJJ shorts for added comfort and protection.
There are several reasons why wearing the right gear under a gi is important:
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Hygiene – Sweat is absorbed into undergarments rather than the gi, reducing bacterial buildup.
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Comfort – High-quality under-gi wear prevents chafing and irritation from the rough gi fabric.
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Flexibility – Compression shorts and rash guards offer better mobility than traditional underwear.
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Protection – Rash guards and compression wear provide an extra layer against skin irritation and minor scrapes.
Many BJJ practitioners now prefer wearing a rash guard on top and BJJ shorts or compression gear underneath their gi pants to maximize comfort and performance.
Do You Wear Shorts Under a BJJ Gi?
Wearing shorts under a BJJ gi is common and often recommended, but it ultimately depends on personal preference and gym requirements.
Some gyms require practitioners to wear compression shorts or BJJ shorts under their gi pants for hygiene and modesty reasons. Even in gyms where it is optional, many practitioners choose to wear shorts because they provide additional coverage, comfort, and support.
Benefits of Wearing BJJ Shorts Under a Gi
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Prevents Skin Irritation – The rough texture of a gi can cause discomfort, and wearing shorts underneath adds a protective layer.
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Avoids Wardrobe Malfunctions – During training, gi pants may shift or loosen. Wearing shorts provides extra coverage.
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Maintains Hygiene – Sweat and bacteria build up in the gi, but wearing shorts helps absorb moisture and keeps the gi cleaner.
Rash Guards vs. T-Shirts – Why Rash Guards Are Preferred?
A common debate in BJJ is whether to wear a rash guard or a regular T-shirt under the gi.
While some beginners opt for a cotton T-shirt, it is generally not recommended. Cotton shirts absorb sweat, become heavy, and restrict movement, while rash guards are designed to wick away moisture and provide better flexibility.
Why Rash Guards Are the Better Option:
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Prevents Gi Burn – The friction from a gi can cause rashes on the skin, and a rash guard helps reduce irritation.
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Moisture Control – Rash guards wick away sweat, keeping the body dry and cool.
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Better Mobility – The stretchy material allows for full range of motion during training.
Wearing a rash guard under the gi is widely accepted and even required in some gyms for hygiene and safety reasons.
What Type of Shorts to Wear Under a BJJ Gi?
For those who prefer to wear shorts under their gi, choosing the right type is important. There are several options available, and each has its own advantages.
Best Shorts to Wear Under a BJJ Gi
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Compression Shorts – These are tight-fitting, flexible, and help wick away sweat. They also reduce the risk of skin irritation from the gi fabric.
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Board Shorts – These are commonly used in no-gi training but can also be worn under a gi. They provide a looser fit but may bunch up during training.
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Hybrid Shorts – These combine compression shorts with the durability of board shorts, offering a balance of comfort and flexibility.
Bravo BJJ is offering BJJ shorts in different colors and styles. Whether you prefer compression, board, or hybrid shorts, there are options to suit every training style.
What to Wear Under a BJJ Gi for Men, Women, and Kids?
Men’s BJJ Shorts Worn Under Gi
Men usually prefer compression shorts or Vale Tudo shorts under their gi pants. Some also wear compression spats (leggings) for additional support and muscle recovery.
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Compression shorts offer better flexibility and sweat control.
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Vale Tudo shorts provide a snug fit and support for intense grappling.
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Spats help prevent mat burns and skin irritation.
Women’s BJJ Shorts Worn Under Gi
Women often choose compression shorts or leggings under their gi pants. A rash guard is also recommended for better protection.
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High-waisted compression shorts provide a comfortable and secure fit.
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Leggings offer extra coverage and warmth, especially in colder training environments.
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Rash guards help prevent skin irritation from gi fabric.
Kids’ BJJ Shorts Worn Under Gi
For kids, comfort and mobility are the top priorities. Their under-gi wear should be lightweight, breathable, and non-restrictive.
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Stretchable compression shorts are ideal for young practitioners.
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Loose-fitting yet durable shorts provide comfort during long training sessions.
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A moisture-wicking rash guard helps keep kids dry and comfortable.
Common Questions About BJJ Shorts & Under-Gi Wear
Many practitioners have specific questions about what to wear under a gi. Here are some of the most frequently asked questions:
What to Wear Under Gi Pants?
Compression shorts, spats, or lightweight BJJ shorts are the best options.
Should You Wear Underwear with BJJ Shorts?
Yes, wearing moisture-wicking underwear under compression shorts is recommended for added comfort.
Can You Wear Regular Gym Shorts Under a Gi?
It is not recommended, as regular gym shorts can bunch up and restrict movement.
Bravo BJJ is offering Jiu Jitsu gear in different styles and colors, making it easier to find the perfect training attire.

Choosing the Right BJJ Shorts – Features to Look For
When selecting BJJ shorts to wear under a gi, there are several important features to consider:
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Stretchability – Ensures unrestricted movement during grappling.
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Breathability – Helps wick away sweat and keeps the body cool.
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Durability – Must withstand regular training and washing.
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Fit – Should be snug but not restrictive to avoid discomfort.
Bravo BJJ offers a variety of BJJ shorts designed for durability and comfort, making them an excellent choice for practitioners at all levels.
Conclusion – Get the Best BJJ Shorts for Under Your Gi
Wearing the right BJJ shorts under your gi enhances comfort, prevents irritation, and maintains hygiene. Whether you are a beginner or an experienced practitioner, investing in high-quality under-gi gear will improve your training experience.
Bravo BJJ is offering custom BJJ shorts in different colors and styles. These shorts are designed for performance, ensuring that every BJJ practitioner trains with confidence.
If you are looking for the best under-gi wear, explore Bravo BJJ’s collection today and upgrade your training gear for maximum comfort and performance.