Ruggedly weatherproof with materials that break in nicely over time, the Burton [ak] GORE-TEX Clutch Mitt combines the abrasion-resistance of Gnarr Guard genuine leather with a waterproof, windproof, and breathable GORE-TEX membrane which is GUARANTEED TO KEEP YOU DRY. Midweight warmth and super-duper dexterity make these a no-brainer when sledding or shoveling, and the Screen Grab leather thumb and index finger give you touchscreen control without ever exposing your hands to the cold. Back Of Hand:93% Polyester, 7% Spandex, Palm:100% Goat leather, Insulation:100% Polyester, Lining:100% Polyester, Membrane:100% Gore-Tex.