* Low-profile design fits under or over armor * Low-profile design keeps pack stable and doesn’t interfere with helmet * Easy, convenient filling with external access to the low-profile 102 oz. AeroForm™ baffles OMEGA™ Reservoir * Measures: 17” x 12” x 2” * Weight: 1.76 lbs. empty and 8.38 lbs. filled * Air Channel™ ventilated back panel keeps you cool * Dual storage compartments hold spare gloves, goggles and tools * Includes the patented Ergo HydroLock™ * Wicking mesh back panel keeps you comfortable * Fully insulated to keep liquid cold for hours * Includes sternum strap * Strap management secures loose webbing * Machine Washable