Modular, waterproof travel and outdoor backpack; innovative closure and operating concept with large zip opening on the back; available in three (Atrack) or one (Atrack ST) sizes; Shoulder straps with stepless back adjustment; breathable back support surfaces; padded hip belt; Hip belt pockets; Mesh outer pockets; removable compression straps; Daisy chains on the front; Hermetic opening for drinking tube (drinking system not included); 4 inside pockets; Internal compression; Key hook.

Accessories sold separately: Atrack Hydration System; Attachment Kit for Helmets; Attachment Kit for Gear.