This size chart is for kids' sizes (K1 to K5) for our kids' Jiu Jitsu belts. We also offer adult Jiu Jitsu belts.
This size chart is for kids' sizes (K1 to K5) for our kids' Jiu Jitsu belts. We also offer adult Jiu Jitsu belts.
| Size | Belt Length | Approximate Age |
| K1 | 74.75" | 4 to 5 years |
| K2 | 80" | 5 to 7 years |
| K3 | 85" | 7 to 9 years |
| K4 | 90.25" | 9 to 11 years |
| K5 | 95.25" | 11 to 13 years |
Not sure if you're choosing the right size? We get it, Jiu Jitsu gear sizing can be tricky. That's why we offer totally free pre-paid returns.
Sold Out $24.99 Size Guide
This size chart is for kids' sizes (K1 to K5) for our kids' Jiu Jitsu belts. We also offer adult Jiu Jitsu belts.
| Size | Belt Length | Approximate Age |
| K1 | 74.75" | 4 to 5 years |
| K2 | 80" | 5 to 7 years |
| K3 | 85" | 7 to 9 years |
| K4 | 90.25" | 9 to 11 years |
| K5 | 95.25" | 11 to 13 years |
Not sure if you're choosing the right size? We get it, Jiu Jitsu gear sizing can be tricky. That's why we offer totally free pre-paid returns.
Our kids’ Jiu Jitsu belts are available white through green, including white and black stripe ranks. Competition legal with durable construction for everyday use.
Ships Today from San Diego • Free Returns
We carry every rank in the kids' Jiu Jitsu belt system, including white and black stripe variations.
Competition legal and durable enough for daily training. Simple, consistent, and ready for the next promotion.
Sizing:
