Clearance Piranha Gear Ninjitsu Master Uniform Belt At about 1 3/4 wide and with 9 rows of stitching, we designed these for people serious about martial arts such as Judo and Karate... ...but obviously you could use them for BJJ, Aikido, Jiu-Jitsu, MMA or any other combat arts style. Nothing magic about the way they look. Made of 100% cotton with a very slightly softer outer layer to help keep the belt tied. Hopefully youll not have the belt so long that the change in the outer layer will ever wear thin (3 year yellow belt??). While wed like to THINK that everyone makes belts to a standard length  be sure to check the size chart to make sure it will fit you!