Description of Deuter Race EXP Air Daypack The Race EXP Air packs in all the features on a Air Comfort back system. It's by far the most versatile pack for the quick loop or the long haul. Features: Air Comfort Backsystem Stow-away helmet holder Raincover Expandable main compartment Mesh side pockets 3M reflectors Front organizer pocket Zippered mesh internal pocket 3 liter Streamer reservoir Volume: 750-900 cubic inches Torso: One Size inches Weight: 2 lbs. + 6 oz. Dimensions (HxWxD): 18 x 9 x 5 inches System: Air Comfort Materials: MicroRip-Nylon