Well insulated and completely waterproof, the Black Diamond Ruby Mitt is built for any ski day from January storms to spring slush. A four-way stretch Pertex Shield(R) exterior increases dexterity while the BDry(TM) insert protects from the elements. Thinsulate(R) insulation and a fleece lining fight off brutally cold temperatures, and a goat leather palm makes the Ruby Mitt durable enough to be used for years. Features: 100% waterproof BDry(TM) insert Lightweight, abrasion-resistant, Pertex Shield(R) shell with 4-way stretch 100 g Thinsulate (R)insulation Fixed 100g fleece lining Goat leather palm