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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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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Bought a couple with the Black Out special. Ordered XL (which is what I use with another brand), which ended up being tighter than expected, but I'm using it under my gi, so not a big deal. Will order XXL next time. But everything else is great.
I’m 5’7” and hover between 180-185. I wear a large in most t-shirts. I ordered XL after reading the reviews and they ended up being too small also. I got in touch with their phenomenal customer service and they helped me with my exchange. The quality is a 10/10!