Fairtex BJJ Belt Size Guide
Fairtex BJJ belts come in adult sizes A0–A4 and kids sizes M1–M4, with lengths in centimetres. Pick by your Gi size first — it's the simplest rule and works for most people. If you want a more precise fit, measure around your waist twice plus 30–40 cm for the tying allowance.
Adult belts
| Size | Length (cm) |
|---|---|
| A0 | 249 |
| A1 | 256 |
| A2 | 280 |
| A3 | 304 |
| A4 | 328 |
Kids belts
| Size | Length (cm) |
|---|---|
| M1 | 206 |
| M2 | 224 |
| M3 | 241 |
| M4 | 259 |
How to choose your size
- Easiest rule — match your belt size to your Gi size (A1 Gi = A1 belt, A2 Gi = A2 belt, etc.).
- If you're measuring — wrap a tape around your waist over your Gi, double the measurement, and add 30–40 cm for the tying allowance. Match the total to the closest length above.
- Between sizes — most people prefer the longer size for easier tying and a more secure double knot.
