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.
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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.
$39.99 Size Guide
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.
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.
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.
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.
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.
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Shipping took for ever after Gold sent it out. Postal service is terrible!!! Unable to track in real time.
They have a ton of spandex and are the tightest thing I own now, I always buy a size up but it seems like I had to buy 3 sizes up if I wanted this to fit
Fits tight but very comfortable.
Everything was super comfortable and fits tall people well. Just please note for the rash guards if you weigh 170 and are 6’-6’2” go with the extra large, I went with large and it fits but it’s a tight squeeze and if it shrinks at all I’ll need to upsize
Thought the sizes were universal. Ordered an XL to have a baggier shirt and it felt tighter than my other Large rash guards.