100% Polyester Zipper closure ???Size Tips?? Asian size may be 1-2 size smaller than US or EU,please view the size chart image before ordering. ???Back Three Pockets??Back independent pocket, you can place key, wallets or other items. ???Reflective ?? Reflective strip at the back to ensure night riding safety. ???Hem with Silicone Band?? WEIMOSTAR logo silicone band, can provent skin allergy during riding. ???Full Zipper??Use of full length invisible zipper,self-locking function invisible zipper, clean and beautiful.