Ultra high strength nylon fabric which is born from the top edge of Toray ®」 . Unlike the conventional 66 nylon, it has a high viscosity hollow rubber technology and spinning technology. In addition, it is stronger than 66 nylon now, and it is rich in durability, and the material which collected technology of pure country is used. Armor armor ® 420D nylon is made of durable super water repellent processing on the back surface, and it is lightweight and waterproof is improved by applying three layers of cotek on the back. The included dough is usually about 5 times the thickness of nylon, tear, tear strength and durability of invita ® Nylon and PVC processing to improve strength and waterproofing. In addition, there are 13 kinds of reference material of Japan Leather Technology Association (Jes), and the harmful substance inspection (Jes) which is harmful to the human body, and hexavalent chromium is used, and it is made of the tentenia that is tanned with the tannery. As for the fastener of the front holder, the use of the excera made by YKK Co., which has been polished to the entire surface of the element, is made of metal, and it does not use metal, and it is lightweight. The triangle name is reflexive function, and the safety of night is also considered. It is made to store the scarf, tofu folding, etc. It is a sheath which corresponds to various situations, and the color and the color are asked to turn on and off.