Most rashguards look the same in the shop. On the mat, you know the difference within ten minutes. Here is what actually matters when you are choosing one.
1. Fit - the one thing most people get wrong
A BJJ rashguard should feel like a second skin. Compression fit means the fabric is tight to the body - snug but not uncomfortable. No loose fabric for your training partner to grip. No bunching or riding up mid-scramble.
Run the test: raise both arms overhead and rotate your shoulders in a full circle. If the rashguard rides up and exposes your midriff, it is too small. If you can pinch the fabric away from your chest by an inch, it is too big.
2. Fabric and stitching
Look for a polyester-spandex blend with flatlock stitching. Flatlock seams sit flat against the skin - no raised ridge, no chafing over two hours of rolling. Reinforced seams at the shoulders and cuffs determine whether you still have a rashguard after a year of daily training. Every TEAMBLADI rashguard uses this construction because it is the baseline of what serious fightwear needs to be.
3. Short sleeve vs long sleeve
Short sleeve: full shoulder mobility, cooler in warm gyms, easy to layer under a gi jacket. The default for most No-Gi grapplers.
Long sleeve: more skin coverage for hygiene and mat burn prevention, warmer for cold gyms. Many grapplers own both and swap by session. See the Senshi Black Long Sleeve for maximum coverage.
4. IBJJF colour rules
Under IBJJF No-Gi rules, your rashguard must predominantly match your belt rank. White belt - white or black. Blue belt - blue. Purple, brown, black accordingly. Getting this wrong means not being allowed to compete. The Senshi Collection covers every belt colour.
5. Sublimated graphics vs printed logos
Sublimated graphics are dyed into the fabric - they cannot crack, peel or fade, even after hundreds of washes. Avoid rashguards with raised or heat-transferred logos: they deteriorate fast and chafe against training partners.
Senshi Black BJJ Rashguard - Short Sleeve
IBJJF Legal · Flatlock stitching · Sublimated print · €49.99
Ships from Vienna in 2-4 days.
Shop Senshi BlackFrequently asked questions
How tight should a BJJ rashguard be?
Tight enough that no fabric can be grabbed. Loose enough to have full mobility through your shoulders. If it feels like a compression bandage, it is too small. If you can pull it an inch from your body, it is too large.
Is a more expensive rashguard worth it?
Yes - specifically in stitching durability and print quality. Cheap rashguard seams fail under the friction of regular rolling. Sublimated graphics on quality fabric outlast cheaper alternatives many times over.
Do I need a rashguard for BJJ?
For No-Gi, yes - it is essentially required for hygiene, mat friction and grip prevention. For Gi training, many academies encourage a rashguard under the jacket for the same reasons.
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