Description of Deuter Trans Alpine 30 AC w/2L Hydration Pack The convenience, storage, and functionality of the Deuter Trans Apline TA 30, but with an Aircomfort Backsystem. Features: Airstripes Backsystem Multiple front pockets Side mesh pockets 2 Liter Blue Spring Source reservoir Rain Cover Interior valuables pocket Helmet holder SOS patch Dividable main compartment Volume: 1850 cubic inches 30 liters Torso: One Size inches Weight: 3 lbs. 1 oz. + 6 oz. System: Advanced Aircomfort Materials: Ballistic