Expedition tested to 8000 meters and beyond and endorsed by big-mountain legend Ed Viesturs.

These altitude-oriented mitts provide warmth while keeping weight and bulk to a minimum. The waterproof shells have thick fleece on the palms and synthetic insulation on the backs. The removable liners have the same fleece and loft combination. The fleece provides crush resistant warmth and a secure grip while the synthetic insulation offers compressible warmth. Leather palms give you a solid connection with your gear in all conditions.