Polyester fiber (100% polyester), super light anti - splash water, portable storage. Suitable for shopping, zoos, parks, sports and fitness, shopping, outdoor mountaineering activities, school and work. The skin package using lightweight and durable material, can prevent water, quality zipper: waterproof strip, breathable straps: fit the body, not hot, mini adjust buckles: adjust the strap length at random, on both sides with elastic gauze bag can be easily umbrella, glass objects, such as thin fabric soft to you could never imagine feeling, can be folded into a palm-sized bag, quality is light, small volume, can be put into the bag, pocket, plug to pull rod box, put where you want to put, If You Want To Buy Gift For Your Friend Or Family,it Is The Best Choice, giving them the most comfortable feeling. As well as birthday, Halloween, Christmas, New Year's gifts. The backpack has a main pocket with a zipper (double pull) that opens and closes and a storage bag inside.One side p