Design & Details: Lightweight bag ideal for hiking Round profile frame made of permanently elastic spring steel Comfortable to wear thanks to movable, ergonomically shaped Active Fit shoulder straps with soft-edge finishes Pull-forward hip fins Removable sternum belt Outer pockets (3) Elasticated inner compartment for storing wet clothing Compatible with 3.0 liter drinking system/bag Height adjustable lid SOS label lumbar pad for effective load transfer onto the pelvis Hip fins with two zippered pockets Material straps at the front Air Spacer Mesh - Back-friendly spacer fabric Mesh hip fins Spindrift collar Aircontact System PFC free