... Backpack for Promotion 1.Material:210D Nylon 2.Size:31*14*44cm,folded:16*12*3cm 3.For traveling 4.Waterproof Item Name.Folding Backpack, Backpack ... , sports bags, school bags, cooler bags, promotion bags, shopping bags and so on. Material options include polyester, nylon, jeans, oxford, canvas, PVC ...