Brooks Isle of Wight Saddle Bag Material: Bluesign-approved canvas, leather Volume: [small] 49 cu in, [medium] 73 cu in, [large] 110 cu in Closure: double zip Dimensions: [small] 3.9 x 9.7 x 6.3 in, [medium] 3.9 x 4.3 x 7.1 in, [large] 4.3 x 4.7 x 7.9 in Recommended Use: cycling