[ Material Description ] Polyester composite cloth [Product performance] This chest bag is made of high-quality high-density, durable material, good wrinkle resistance, durable. High storage capacity, can hold many items, such as For iPad, books, clothes, cameras, etc. There is a sticker bag on each side of the chest bag, which can be placed an umbrella or a water cup. and thicken shoulder straps and back is very comfortable and light