Waterproof school bag packing is 1pcs/PP bag,25pcs/Carton or customized 1.Made of polyester fabric 2.Dimensions : 31 x 41 x 16 cm/0.62kg 3.Bckpack bag has padded adjustable straps and carry handle 4.Zipper opening to main compartment 5.Bags occasions :/ street/outdoor/travel/camping/school Warranty is for 2 years from date of Purchase . It does not cover any damage by misuse, neglet, accident, exposure to extreme temperatures, solvent, acids, water, normal wear and tear.