The Under Armour UA Contain Duo MD BP Duffle Bag is a unisex backpack and duffle bag in one. Thanks to the waterproof UA Storm technology, it will keep your belongings dry. It has a large main compartment with internal organization, including a compartment for a laptop up to 15". It also includes a bottle pocket and two external pockets for valuables. The LEVELED system ensures even weight distribution. The volume is 50 liters.