Where you're going, you need a pair of bibs taht will work as hard as you do. Stretch infiDRY 20K fabric keeps snow, rain and cld out, while maximizing the movement you need to take you from sea level to the steeps.
20,000mm waterproof/15,000gm Breathable + DWR
Fully Taped Beamis Seams
Air-Flo Mesh Lined Hip Vents and Inner Leg Vents
Boot Gaiter with Lycra Stretch Panel and Boot Lace Hook