What size BJJ belt should I order?

BJJ belt size should be chosen based on your gi size and waist circumference. As a general guide: A0 suits very small builds and youth practitioners, A1 suits slim adult builds, A2 is the most common adult size for average build, A3 suits larger builds, A4 and A5 suit larger or taller practitioners. The belt should wrap around your waist once and tie in a standard BJJ knot with at least 20–25cm hanging on each end.

Do BJJ belts have specific colour requirements for competition?

Yes — IBJJF competition rules specify that the belt must be the appropriate colour for your rank. Choose the colour matching your current rank: White (unranked/white belt), Blue, Purple, Brown, or Black. The standard IBJJF black tip (included on the Hayabusa belt) is required for all ranks in competition use.

How long do BJJ belts typically last?

A high-quality BJJ belt like this one should last through an entire rank — years of daily training. The belt will fray naturally over time, particularly at the knot and tip areas, which is considered a mark of experience in BJJ culture. Heavy-duty cotton construction extends the life of the belt by resisting the tearing and separation that cheaper belts develop at stress points.

How do I wash a BJJ belt?

Machine wash on a cold or warm cycle with the rest of your gi. The belt is pre-shrunk, so washing in cold water will maintain sizing through the wash cycle. Air dry the belt — tumble drying on high heat can cause unexpected shrinkage even in pre-shrunk cotton. Some practitioners prefer not to wash their belt frequently as a BJJ tradition, but from a hygiene standpoint, washing with the gi after each use is perfectly appropriate.