Under Armour Storm Undeniable Backpack Duffle 100% Polyester Imported UA Storm technology delivers an element-battling, highly water-resistant finish Adjustable, padded, HeatGear shoulder straps with integrated handle & sternum strap 2 large vented end pockets, 1 expandable for laundry & shoes Water-resistant valuables pocket & large organization pocket Pockets: 1 interior slip, 4 exterior