With our BJJ Jiu Jitsu Belts you are getting 100 percent cotton belts that are made with durable, reinforced stitching in order to ensure their long-lasting ability and that their integrity is upheld for many years of training to come.BJJ Jiu Jitsu Belts are more than just a way to keep your Bjj Gi tied closed; they are a symbol of how hard you have worked to get to different skill levels in your Brazilian Jiu Jitsu training.