Is this rash guard suitable for competition?

Yes — the Hayabusa Men's Apex Short 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?

Short sleeve is preferred in warmer training environments or by athletes who find arm coverage restrictive. Long sleeve provides full arm protection against mat burns — particularly useful for guard players. Both offer identical fabric performance and compression.

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.