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96 reviews

Foundation Rash Guard

Size Guide
Rash Guard Size Chart

Gold BJJ Rash Guard Size Chart

All of our rash guards follow the same size chart. Please find your waist size below to select the best fit. Our rash guards are designed to fit tight. If you're not sure about the best size or would like a looser fit, please size up.

Size Weight

XS

95lbs to 115lbs

S

105lbs to 130lbs

M

125lbs to 165lbs

L

155lbs to 175lbs

XL

170lbs to 195lbs

XXL

185lbs to 230lbs

XXXL

230lbs and up

Not sure if you're choosing the right size? We get it, Jiu Jitsu gear sizing can be tricky. That's why we offer totally free pre-paid returns.

Rash Guard Size Chart

Gold BJJ Rash Guard Size Chart

All of our rash guards follow the same size chart. Please find your waist size below to select the best fit. Our rash guards are designed to fit tight. If you're not sure about the best size or would like a looser fit, please size up.

Size Weight

XS

95lbs to 115lbs

S

105lbs to 130lbs

M

125lbs to 165lbs

L

155lbs to 175lbs

XL

170lbs to 195lbs

XXL

185lbs to 230lbs

XXXL

230lbs and up

Not sure if you're choosing the right size? We get it, Jiu Jitsu gear sizing can be tricky. That's why we offer totally free pre-paid returns.

Our flagship ranked Jiu Jitsu rash guard. Match with your belt rank, choose from short or long sleeve. Approved for IBJJF competition.

Size
Color
White
Blue
Purple
Brown
Black
Red
Sleeve Length

Ships Today from San Diego • Free Returns

Pair with our Fight Shorts and a base layer of Spats or Compression Shorts for the ultimate No-Gi uniform.

Unrivaled Comfort

We use buttery smooth flatlock stitching that doesn't itch and irritate.

Slightly extended cut means that your rash guard won't ride up while you roll.

Ventilated mesh armpit vents allow you to get through the toughest training rounds without overheating.

Built to Last

Sublimated graphics won't fade or peel as you roll or wash your rash guard.

Backed by the Gold BJJ Guarantee: if you don't love your Foundation Rashguard, let us know and we'll replace or refund your order.

IBJJF Legal

Competition rules require that you wear a rash guard with at least 10% of your belt rank.

Don't get DQ'd for wearing an illegal uniform. Our Foundation rash guard has been specifically designed to meet all Jiu Jitsu tournament requirements.

Customer Reviews
4.7 Based on 96 Reviews
5 ★
79% 
76
4 ★
11% 
11
3 ★
6% 
6
2 ★
3% 
3
1 ★
0% 
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Filter Reviews:
    AB
    07/18/2024
    Abram B.
    United States United States

    They run very very small. I had to order 2 sizes up an still came in tight fit.

    Customer service was very good.

    M
    07/16/2024
    Mendoza
    United States United States

    Gear

    Great quality and great customer service

    SK
    07/13/2024
    Steven K.
    United States United States

    Foundation Rash Guard

    Great product and price point. Does the job, will order from you again and great customer experience.

    JS
    07/08/2024
    Justin S.
    United States United States

    Great Quality, Great Company,

    I had the pleasure of visiting the warehouse in San Diego with my family it was a vibe, we felt like we were part of the fam. My two children and I got fitted, the Rashguards are made tight so if thats not your preference, simply size up. Either way will be more then pleased with the quality and comfort of the product.

    MW
    07/01/2024
    Masato W.
    United States United States

    Great rash guard and shorts

    Been training in the shorts for over a year and still as solid as the day i got them. Rash guard is long so it doesn't ride up during rolls. Highly recommend both!