Specification: Category: Waterproof bag Material: Nylon+PU coating Waterproof Index: 3000m Color: Army green Capacity: 1.5L(S) 2.5L(M) 3.5L(L) S Size(21g): 21.5 x 19.5cm/8.4 x 7.6inch M Size(23g): 28 x 20cm/11 x 7.8inch L Size(25g): 29.5 x 22.5cm/11.6 x 8