Black Diamond Women's Mercury Mitts Cold Weather Mittens Shell: 92% Nylon/8% Spandex, 100% Goat Skin Palm, Lining: 100% Polyester. Imported Removable liner with 100% waterproof Dry insert Lightweight woven nylon, abrasion-resistant shell with 4-way stretch Removable liner with 284 g Prim aloft One and high-loft fleece