This backpack from Under Armour is storm treated and is water resistant. This large sport backpack is perfect for any ball carrying sport. The outer mesh pocket is large enough to hold a football, volleyball, basketball, american football, conveniently frees up your hands. The large zippered main compartment contains enough space for your other belongings. Adjustable ergonomic and reinforced padded shoulder straps. Zippered side organization pockets ensures quick accesss for water bottles and other miscellaneous gear. Material: Nylon/Polyester.