Seirus Innovation 8134 Unisex Heatwave Glove Liner with 4-Way Stretch 83% Polyester/17% Spandex Imported WAVES OF HEAT - Kinetic heat return system amplifies your body heat 4-5 degrees, and reflects it back to you for 20% more warmth WATERPROOF, BREATHABLE INSULATION - Fully lined with 250g Heatlock Insulation with a Waterproof, Breathable Dryhand insert that provides warmth without excess bulk or loss of dexterity DURABLE - The Taslan Outer Shell and Suregrip Palm ensure a comfortable, sure grip and will keep your hands warm and dry in wet and windy conditions COMFORTABLE SNUG FIT - The Adjustable Velcro Wrist Cinch with Gauntlet Cuff keeps the gloves securely on your hands and prevents snow from creeping in. "PERFECT FOR WINTER OUTDOOR SPORTS - These gloves are suitable for skiing, snowboarding, hunting, and other cold weather outdoor activity " Exclusive Heatwave thermodynamic lining with dual stage heating system Heatwave lining amplifies temperature 4-5 degrees which returns 20% more warmth Silicon Palm Wear as a liner or lightweight glove