Is this rash guard suitable for competition?

Yes — the Hayabusa Men's Apex Long Sleeve Rash Guard is built to tournament-grade standards and is appropriate for no-gi BJJ competition and grappling events. Check your specific event's colour and design requirements before competing.

Long sleeve vs. short sleeve — which should I choose?

Long sleeve provides full arm coverage, reducing mat burns and abrasions on the forearms — particularly useful for guard players and those who do a lot of ground work. Short sleeve is preferred in warmer training environments or by those who find arm coverage restrictive. Both offer identical fabric performance.

How should a rash guard fit?

A rash guard should fit snugly — close to the body like compression gear — without restricting movement or breathing. It should not bunch up during rolls. If you're between sizes, size down for a true compression fit. Available S–3XL.

Can I wear this under a gi?

Yes — rash guards are commonly worn under a gi top for both comfort and hygiene. They reduce skin irritation from the gi fabric during drilling and rolling, and many competitors layer a short-sleeve rash guard under their gi jacket for competition.