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134 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
4.5 Based on 134 Reviews
5 ★
76% 
102
4 ★
10% 
14
3 ★
6% 
8
2 ★
4% 
5
1 ★
4% 
5
Customer Photos
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Filter Reviews:
    ET
    12/20/2024
    ERIC T.
    United States United States

    Sizing is off - Known issue and never fixed

    I’m 5’9”, 180 lbs, with an athletic build, and I bought two XL rash guards from Gold. Normally, I wear a large, but according to Gold’s size chart, XL should fit 170-195 lbs, so I sized up. When the rash guards arrived, they were incredibly tight—practically skin-tight, and fit like a medium. It was impossible to wear them comfortably. As a black belt who has been training for years and owns gear from many brands, I’ve never encountered sizing issues this bad. Out of curiosity, I checked the reviews on Gold’s website and saw that this sizing issue has been a long-standing problem, which made it even more frustrating. If this is such a well-known issue, why hasn’t it been fixed? I reached out to their customer service, and to their credit, they responded quickly. They offered me a full refund or the option to keep the rash guards and gift them to teammates, along with a 50% off code for a reorder. I chose the second option since I knew teammates who could use them. However, I still had to pay $8 for shipping which was annoying, and in the end, I spent more than the full price for gear I originally bought because it was on sale. To make matters worse, the rash guards themselves are nothing special. They’re not bad, but they don’t stand out in terms of quality or design compared to other brands. It feels like I wasted my time and money on this purchase. Going forward, I’ll be sticking with brands like Fuji or FWH, which have always been consistent and reliable. This experience was frustrating, and I can’t recommend Gold until they address these issues."

    BM
    12/17/2024
    Beth M.
    United States United States

    A Christmas present!

    My overall experience with Gold BJJ has been excellent! I received my purchases in a timely manner and they appear to be of high quality! I’m very excited for my son-in-law to open his presents this year at Christmas!

    J
    12/16/2024
    JARED SVG verified by SHOP
    United States United States

    Great quality

    GR
    12/15/2024
    George R.
    United States United States

    Great Rash Guard

    Great quality. Shirts run small so order a size up.

    MD
    12/15/2024
    Michael D.
    United States United States

    Very high-quality

    Awesome! I love the shirt