All of our rash guards follow the same size chart. 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.
All of our rash guards follow the same size chart. 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 200lbs |
| 2XL | 185lbs to 230lbs |
| 3XL | 220lbs to 250lbs |
| 4XL | 250lbs 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.
$54.99 Size Guide
All of our rash guards follow the same size chart. 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 200lbs |
| 2XL | 185lbs to 230lbs |
| 3XL | 220lbs to 250lbs |
| 4XL | 250lbs 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.
New drop! Our officially licensed Gold BJJ x C4 Foundation rash guard is here.
Want to complete the kit? Save when you bundle with C4 Shorts.
For every piece sold, we donate $5 to the C4 Foundation.
Ships Today from San Diego • Free Returns
The C4 Foundation provides resources and support available nowhere else to active-duty Navy SEALs and their families.
Through neuroscience-based programs recognized by Naval Special Warfare, the C4 Foundation reduces stress, strengthens family connections, and builds resilience, optimism, and gratitude across the SEAL community.
We're proud to partner with them with our line of officially licensed no-gi gear.
