Some darkening and marks This backpack was designed for a quick work-to-workout transition with a built-in pocket for sweaty gear. Fabric is water-repellent and easy to wipe clean features Designed for: On the Move Strong straps: Reinforced strap construction carries a heavy load when you're on the go all day Expandable pocket: Stores your sweaty gear Phone pocket: Quick-access phone pocket helps keep you connected Dimensions: 29cm x 18.5cm x 42cm (11.5" x 7" x 16.5") Volume: Volume: 17L