Mammut made the Expert Prime Glove rugged and versatile for skiers who play in the alpine and the resort. This technical double glove features a removable insulated liner and an external Gore Tex shell for guaranteed waterproof breathable protection. This convenient construction allows you to wear the external shell by itself when water is the only issue, the removable liner by itself when cold is the only issue, or both together when water and cold fight against you. X Trafit technology ensures optimum tactility, flexible dexterity, and soft comfort. Mammut added goatskin at the palm for a good grip and at the knuckles for protection.