Competition Ready
IJF Guidelines
Official IJF gi specifications for competition. Know the rules before you compete — and choose gear that meets them.
Standard
IJF 2024
What is IJF Approval? The International Judo Federation (IJF) tests and approves judogi that meet strict standards for fabric weight, weave construction, and durability. Only IJF-approved gis may be used in IJF World Tour events and many national-level competitions. Check with your federation for local competition requirements.
Gi Colour Rules
| Colour | Allowed | Notes |
|---|---|---|
|
White
|
✓ Allowed | Must be fully white — no off-white or cream |
|
Blue (Royal / Dark)
|
✓ Allowed | IJF blue — must be a solid, deep blue |
|
Black
|
✗ Not Allowed | Not permitted at IJF-sanctioned events |
|
Grey / Mixed
|
✗ Not Allowed | Not permitted at IJF-sanctioned events |
| Any other colour | ⚠ Check rules | Varies by local federation — check before competing |
Gi Specifications
| Requirement | Specification |
|---|---|
| Jacket fabric weight | min. 700 g/m² |
| Trouser fabric weight | min. 450 g/m² |
| Jacket length | Must cover thighs |
| Sleeve length | To wrist ±5 cm |
| Trouser length | To ankle ±5 cm |
| Lapel width | min. 4–5 cm |
| Lapel thickness | 1–1.5 cm |
| Collar space | Fist must fit between chest & collar |
Branding Rules
| Location | Max Size | Status |
|---|---|---|
| Back of jacket | 100 cm² | ✓ Allowed |
| Chest (per side) | 25 cm² | ✓ Allowed |
| Upper sleeve (per side) | 25 cm² | ✓ Allowed |
| Trouser leg (per leg) | 25 cm² | ✓ Allowed |
| Belt area / across back | — | ✗ Not Allowed |
IJF Weight Categories (Senior)
Men
–60
Extra Light
–66
Half Light
–73
Light
–81
Half Middle
–90
Middle
–100
Half Heavy
+100
Heavy
Women
–48
Extra Light
–52
Half Light
–57
Light
–63
Half Middle
–70
Middle
–78
Half Heavy
+78
Heavy
Pre-Competition Checklist
- Gi is white or IJF blue (no mixed or faded colour)
- Jacket reaches mid-thigh or below
- Sleeves reach within 5 cm of wrist when arms are extended
- Trouser legs reach within 5 cm of ankle
- Fist fits between chest and collar when jacket is closed
- Belt tied with correct knot (two wraps around body)
- Gi is clean and in good repair — no tears or loose stitching
- Branding patches are within size limits
- Black, grey, or non-IJF colours
- Jacket too short — doesn't reach thighs
- Sleeves too short — more than 5 cm from wrist
- Oversized branding or logos on prohibited areas
- Collar too tight — fist cannot fit at chest
- Torn or damaged fabric — will be failed at inspection
Official Source
For the most up-to-date IJF rules and approved gear lists, always check the official IJF website.