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68 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 68 Reviews
5 ★
79% 
54
4 ★
12% 
8
3 ★
6% 
4
2 ★
3% 
2
1 ★
0% 
0
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Filter Reviews:
    D
    03/13/2024
    David SVG verified by SHOP

    Fits perfect and feels great!

    SS
    03/12/2024
    Scott S.
    United States United States

    Won a $10 gift certificate, so I used it to buy another Foundation combo. Ordered the rash guard in XXL this time, and it fit much better. Gave my other 2 rash guards (XL) to one of my training partners, and he loves them.

    AP
    03/11/2024
    aaron p.
    United States United States

    Another great purchase!

    Excellent! Great products and quick from order to the mats!

    RS
    03/11/2024
    Rain S.
    United States United States

    It’s really tight more than seems reasonable. I get rash guards are kinda like a second skin , yet I hope that we can get some that’s a little more breathable slightly less form fitting that still meets ibjjf regulations. I honestly don’t know how much I will be using this probably not vey often.

    SW
    03/09/2024
    Scott W.
    United States United States

    Very nice!

    Everything was good. High quality as advertised