Each drawstring bag is of 13.5 width and 17 height. The kind of size is suitable for all ages, either kids or adults. All drawstring backpacks are made of a new type of polyester, a higher bearing capacity, more durable, and longer service life. Each string bag in the drawstring bag backpack bulks can be folded into a small size, which can be stored even in your pocket. It is a good string bag to take around with you. There is a reflective line in each gym string bag, helping others to notice you when in the dark. Contact us now for details. Can be order under MOQ. Qty more than 10000 pcs are ship via sea.