The Under Armour Ozsee Sackpack is a great pack when you are on the go and need to carry a few things. The Ozsee Sackpack is constructed with a durable polyester material that helps withstand daily wear and tear. The pack features a sternum clip allowing it to comfortably stay on your shoulders and preventing unwanted slipping. The easy cinch drawcord secures your gear during transport. Cubic volume: 1000.