Sanabul Brazilian Jiu Jitsu BJJ Pro Belts Superior durability. This belt will withstand grueling training sessions and competitions Available in standard Brazilian Jiu Jitsu belt colors. White, Blue, Purple, Brown, and Black Sleeve bar for ranking stripes IBJJF competition approved thickness. Please measure your current belt for correct size purchase. K0: 77 K1: 79.5 K2: 85 K3: 90.5 A1: 104 A2: 110 A3: 116 A4: 124. NOTE: Generally speaking customer prefer a belt size 1 size bigger than their Sanabul Gi. For example if a customer wears an A2 gi they prefer an A3 belt. Best way to confirm correct size is by the measurement of the belts. Superior durability. This belt will withstand grueling training sessions and competitions Available in standard Brazilian Jiu Jitsu belt colors. White, Blue, Purple, Brown, and Black Sleeve bar for ranking stripes IBJJF competition approved thickness. Please measure your current belt for correct size purchase. K0: 77 K1: 79.5 K2: 85 K3: 90.5 A1: 104 A2: 110 A3: 116 A4: 124