Bum Bag Mini is a functional bag crafted with an adjustable webbing strap that can be worn over the shoulder, cross the body or at the waist. This waterproof design has one internal compartment, a buckle closure on its webbing strap and is finished with tonal zip.....Bum Bag Mini is cut in Rains? signature waterproof PU fabric, engineered for carrying strength, durability, and a smooth feel.