Built for the demands of expedition alpine and ice climbing, the Alpha AR 55 is a capable, versatile multi-day pack featuring the high-tech fabrics and attention to detail that Arc'teryx is known for. It's made from extraordinarily durable high-tenacity nylon with a liquid crystal polymer ripstop grid to stand up to abrasion, sharp tools, drags, drops and other abuses. Load it up for epic approaches, then strip it down for the summit bid by removing the lid, framesheet and back panel. A thermoformed suspension system is supportive without being bulky, and various well-considered attachment points let you carry ropes, ice tools and even skis in a configuration that works for you.
- Proprietary fabric is burly high-tenacity nylon with a liquid crystal polymer ripstop grid
- Fully seam-sealed for water resistance
- Lightly padded foam back panel provides structure and support without excess weight
- Framesheet and back panel can be removed to enhance packability and reduce weight
- Thermoformed shoulder straps use an air permeable fabric for comfort next to skin
- Padded hipbelt
- Adjustable, removable sternum strap
- Lid has a top pocket with watertight zip closure, and can be removed
- Security pocket under lid with key clip
- Large webbing pull-tabs for easy access while wearing gloves
- Expandable drawstring collar lets you increase pack volume to carry more gear
- Top compression strap secures a climbing rope
- Hydration port and micro-webbing hydration hose loops
- Dual-haul loops double as carry handles and means you use the pack as a haul bag or clip it off to an anchor
- Dual ice axe loops
- Ice pick capture webbing accommodates a variety of angles
- 6 front lash points and custom webbing daisy chains to attach extra gear or your own accessory straps
