Under Armour Backpack/Sack-pack Waterproof Navy Blue/Gray/White Dimensions: 19 x 15 x 2 in. 100% polyester Durable polyester material withstands everyday wear and tear Large zippered front pocket for organization and added storage Easy-cinch drawcord secures top-loading compartment Sternum clip keeps pack in place on your shoulders Lightly used in excellent condition # 528 E