Outer Material: Most ski gloves are made using thick polyester treated with a waterproof DWR coating. Leather is a premium option for the very best ski gloves and mittens. But, if looked after, a pair of premium leather gloves with a Gore-Tex liner will last for years. Check carefully as some leather gloves won’t be fully waterproof. Polyester gloves with leather palms offer a balance of value and durability.