If you've just enrolled your child in karate — or started training yourself — one of the first things you'll be told is to buy a belt. But browse any martial arts store and you'll find an overwhelming range of colours, sizes, and qualities. How do you know what to buy?
This guide covers everything: what belt colours mean, how the grading system works across different styles, how to measure for the right size, and what to look for in a quality belt.
Why Do Martial Arts Belts Exist?
The coloured belt ranking system was developed in the early 20th century by Jigoro Kano, the founder of Judo, as a way to visually identify a student's level of progress. Today, the belt system tells an instructor at a glance who needs more attention, who can be paired for safe sparring, and who is ready to move up. For students — especially children — the visible progression is a powerful motivator.
The Karate Belt Order — From White to Black
Belt colour sequences vary between styles, but here is the most common progression used by Australian karate clubs:
| Belt Colour | Typical Grade (Kyu) | What It Represents |
|---|---|---|
| White | 10th Kyu (beginner) | Starting point — no experience required |
| Yellow | 9th Kyu | Beginning to understand fundamental techniques |
| Orange | 8th Kyu | Growing confidence, basic form established |
| Green | 7th Kyu | Developing techniques with more fluidity |
| Blue | 6th Kyu | Increasing skill and self-discipline |
| Purple | 5th Kyu | Advanced student level beginning |
| Red | 4th Kyu | Significant technical skill achieved |
| Brown | 3rd–1st Kyu | Pre-black belt — serious advanced student |
| Black | 1st Dan (Shodan) | Mastery of fundamentals — the real learning begins |
It's important to note that the black belt is not the 'end' — Shodan (first-degree black belt) is considered the beginning of true mastery, not the pinnacle.
How Belt Colours Differ Across Styles
| Style | Belt Progression Notes |
|---|---|
| Karate (Shotokan, Goju-Ryu) | White → Yellow → Orange → Green → Blue → Purple → Red → Brown → Black |
| Taekwondo (WT) | White → Yellow → Orange → Green → Blue → Red → Black |
| Brazilian Jiu-Jitsu | White → Blue → Purple → Brown → Black (fewer colours, longer between gradings) |
| Judo | White → Yellow → Orange → Green → Blue → Brown → Black |
| Kyokushin Karate | White → Orange → Blue → Yellow → Green → Brown → Black |
Key takeaway: always confirm your dojo's specific belt order with your instructor before purchasing.
How to Measure for the Right Belt Size
Martial arts belts are sized by length. The right length depends on your waist size and how many times you wrap the belt (typically twice).
| Belt Length | Waist Size (approx.) | Who It Suits |
|---|---|---|
| 110 cm | Under 60 cm | Young children (approx. 4–7 years) |
| 120–130 cm | 60–70 cm | Older children / small adults |
| 140–150 cm | 70–85 cm | Average adults |
| 160–180 cm | 85–100 cm | Larger adults |
| 200 cm | 100 cm+ | Extra-large adults or tall individuals |
When in doubt, size up. A belt that's too long can be tucked — a belt that's too short won't tie correctly.
What Makes a Quality Martial Arts Belt?
- Cotton construction — traditional belts are woven cotton; avoid thin synthetic belts that don't hold a knot
- Double-stitched edges — a well-made belt won't fray even after years of use and repeated washing
- Consistent colour saturation — cheap dyes fade and blotch after a few washes
- Proper weight and stiffness — a belt should hold its shape when tied
The Zett Full Colour Martial Arts Belts are handstitched with a classic finish and available in every grading colour from $5.50 per belt — so stocking up for multiple progressions doesn't break the budget.
Frequently Asked Questions
How often should I replace my belt?
A quality belt can last years. Replace it when the colour fades significantly, the cotton frays, or the knot won't hold neatly.
Should I wash my belt?
Traditionally, martial artists did not wash their belt. Practically, occasional cold-water washing is fine. Hang dry away from direct sunlight to preserve colour.
My dojo uses a different colour order — can I still buy from ZettSports?
Absolutely. We stock every standard colour individually so you can buy exactly the colour you need regardless of your dojo's specific system.