adidas Essentials Bum Bag Properties: adidas Essentials Bum Bag This adidas waist bag is perfect for everyday use. The main compartment opens with a zipper. There's a zippered pocket on the front. Internal mesh pocket. Adjustable hip belt with a detachable buckle. Technical data: Dimensions: 25x12.5x6 cm Capacity: 1.9 l Material: 100% recycled polyester