Built for mountain professionals, the Alpha PRO 50 keeps critical equipment protected from the elements and accessible in complex alpine terrain. A full-length side zip provides quick access to essential gear on steep slopes, and the suspension system is built for stability and extended use in rugged terrain. Fully seam-sealed to keep gear dry in snow, sleet, and prolonged wet conditions, it also features a roll-top collar that adds 12L of volume for ropes, layers, or other emergency gear.