Kinco 901T Mitt Features:Durable pigskin leather out wears regular cowhide and fabric ski glovesExtra HeatKeep® thermal lining for those exceptionally cold daysReinforcing leather patch sewn with Draylon® thread covering the palm area for extra abrasion protection Comfortable 5-finger liningEasy-On™ or shirred elastic cuffWing thumbPairing hookMen’s sizes: S, M, L, XLCome with 1 packet of Nikwax to be applied before wearing Materials:Pigskin: This leather is tough and pliable. Soft drying and flexible, pigskin leather withstands moisture without stiffening. It also has excellent abrasion resistance and durability.HeatKeep® thermal lining: Finely spun polyester fibers create thousands of air pockets that surround the hand, trapping the heat that is being generated and repelling the cold that is coming from the outside. Combined with layers of nylon batting and nonabsorbent polypropylene that “wicks” water away from the hand, Heatkeep® lining out performs the other leading insulators on the market today.Draylon thread: Draylon is used on many of Kinco’s double palm sewn gloves because of being the best known material for abrasion and tensile strength. Known to be used in parachute cords can speak for its strength.