Belts distinguish the different grades in the martial arts.
For the Kyu grades they are of different colours, indicating the technical skill which 'beginners' have reached. The belt of the Judogi is about two metres long and is wrapped twice round the jacket. It is five centimetres wide, and made of several layers of cotton stitched closely together to make it strong and solid in appearance. Fastened in this way, it keeps the jacket firmly in place. 4. belt 7.