Brooks England Pickwick Day Pack Mud Grey, 24 Liter Material: cotton canvas, water-resistant coating, vegetable tanned leather Volume: [15L] 915 cu in, [24L] 1465 cu in Dimensions: [15L] 10.2 x 4.7 x 14.2 - 19.6 in, [24L] 12.4 x 6.3 x 19.3 - 22.8 in Pockets: 2 zippered back Recommended Use: commuting