A full-featured backpacking pack with ergoACTIV XP suspension and a women's-specific fit, the Black Diamond Onyx 55 maximizes comfort and stability. 55 liter cargo capacity.This product will be shipped directly from Black Diamond and will leave their warehouse in 2-3 business days. Eligible for UPS ground shipping only. ergoACTIV XP suspension with OpenAir backpanel and SwingArm shoulder straps for stability, freedom of movement, and dynamic load transfer. Because the shoulder straps and hipbelt move with you, friction and hot spots are eliminated. The packs load stays perfectly balanced at all times-without adjustment. Top-loading with floating top pocket. Front zippered access to main compartment. Waterproof taping on top and bottom. Side and hipbelt pockets. Front and internal organizer pockets. Retractable trekking pole/ice axe loop. Sleeping pad straps. Hydration compatible.