What Can I Wear Instead of a Rash Guard for BJJ?

by Adrian Davis April 15, 2025

While a rash guard is the preferred choice for Brazilian Jiu-Jitsu (BJJ), there are alternatives if you don't have one available. However, it’s important to consider the benefits of a rash guard — like skin protection, sweat management, and hygiene — before opting for an alternative. Here are some options you can consider:

1. Compression Shirt:

Compression shirts are the closest alternative to rash guards. They provide a tight, form-fitting design that reduces friction and minimizes skin contact.
Look for moisture-wicking, breathable fabrics like polyester and spandex blends.
Available at most sporting goods stores, they’re generally more affordable than specialized rash guards.

2. Athletic Dry-Fit Shirt:

Dry-fit shirts are often used in running or general sports training. They wick away moisture and help keep you dry during intense training.
Opt for a snug fit to prevent excess fabric from getting caught or gripped by opponents.
Not as durable as rash guards, but a good short-term option.

3. Long-Sleeve Under Armour or Similar Brands:

Many brands like Under Armour, Nike Pro, or Adidas offer tight-fitting, sweat-wicking tops that can function similarly to rash guards.
These are designed for performance, making them durable and flexible for grappling.

4. Fitted T-Shirt:

In casual or beginner settings, a tight-fitting t-shirt may be allowed. However, it is less effective at moisture control, can stretch out quickly, and may not provide adequate skin protection.
If wearing a t-shirt, choose one made from a quick-drying, polyester blend rather than cotton. Cotton absorbs sweat, becomes heavy, and can cause discomfort.

5. Surf Rash Guard:

If you have a surf rash guard, it can serve as a temporary substitute. However, they may be designed more for sun protection than grappling.
Check that it’s durable enough to handle the pulling and friction involved in BJJ.

6. Base Layers for Cold Weather:

Some cold-weather base layers used for running or skiing can work in a pinch. They often provide compression and moisture-wicking properties.
Ensure they are made from durable, breathable materials that can handle physical contact.

What to Avoid:

Loose or Baggy Shirts: These can get caught, pulled, or torn during training.
Cotton Shirts: They retain moisture, become heavy, and are prone to stretching and tearing.
Tank Tops or Sleeveless Shirts: These expose more skin, increasing the risk of mat burns, scratches, and infections.

Conclusion:

While alternatives exist, a proper BJJ rash guard is the best choice for comfort, safety, and hygiene. If you’re training regularly, investing in a quality rash guard is highly recommended.