Japanese Fist Protection Equipment (Japan Fist Law) Body (with white string) for Boys (Japan Fist Law) N-9) Specifications: Shore with special sponge and white body cord included. Standard Japanese fist. The special sponge protects you and your opponent from injury. Requires an inner butt sold separately with this product. The inside is made of a material that is easy to absorb sweat, so we cannot accept returns or exchanges. Please acknowledge Mikos Fist Law products are officially licensed by the Japan Fist Law Association. We have received a large number of deliveries to the Japanese Fist Law, and Self-Defense Forces.