Grandoe Men's Annapurna Mitt Polyester 92% / Spandx 8% ; 100% Polyester, Polyester 68% / Olefin 32% ; Imported Glove Component System Technology and Dupont ComforMax Radiant Insulation. Patented Extreme Conditions Mitt featuring a 100-Percent pure Shearling and Velocity Soft-Shell Adirondack Deerskin Palm Dri-Gard Waterproof and Breathable Used and endorsed by famous high altitude climber-Ed Viesturs