Polar Fleece: The outmost thermal layer of these warm gloves, it is widely used in various winter clothes because of its excellent thermal retention, flexibility and light weight. Waterproof TPU: The second layer, a breathable material that can efficiently protect hands from getting wet by snowmelt in winter without making the snow gloves stuffy. Firm Sponge: The third layer, a material that has impressive wind resistant performance, it is combined with the elastic wind resistant cuff that provides snug fit to greatly increase the freezing wind resistance of these deerskin cold weather gloves, and in addition, because the sponge is not easily deformed,no floppy fingers would come with these work gloves. Heatlok Insulated Material:The fourth and most critical layer for these deerskin winter thermal gloves,it is the main force for the cold resistance.Heatlok is a high-tech patented that provides warmth without excess bulk or loss of dexterity,it "traps" air and creates a thermal barrier to keep the warmth inside the ski gloves, this unique layer combines with other materials to keep your hands warm even when temperature drops to the range of-30F to -20F. Please note that -30 F is the extreme temperature for these insulated gloves, and the comfortable temperature for these gloves is -20F. TR Thermal Material:The innermost layer and the most frequently touched layer of these cold-resistant deerskin suede leather gloves,it's a very soft and skin-friendly material,you will love the feeling of wearing these winter gloves with it in cold weather . Heatlok for extreme cold weather-Heatlok is a high-tech patented hollow fiber and microfiber system that provides warmth without excessive volume or loss of dexterity. The glove system "captures" air and forms an insulating layer to keep these insulated gloves warm. This unique layer combined with the fleece lining keeps hands warm even when the temperature drops to extremely cold temperatures. The perfect combination of softness and durability-authentic deerskin and fleece winter gloves for men and women use deer suede leather palms and large reinforced leather patches, which have excellent grip, abrasion resistance, breathability and sweat resistance. They There is also polar fleece on the back to increase thickness, warmth and comfort Windproof and waterproof for winter outdoor sports-These winter gloves insert a waterproof and breathable TPU between the fluffy wool and the heat-resistant material on the back to protect your hands from heavy snow and small melting snow during work or sports. But they are not completely waterproof Double lock heat Elastic wrist and knitted cuffs: -The folds with good flexibility fit tightly on the elastic wrist to keep the gloves tight to your skin, while the 2.5-inch knitted cuffs provide more protection against snow and cold wind in winter sports Suitable for unisex The warmest Christmas gift for lover or friend: -Personal winter gloves are the warmest, so please choose the most suitable size from S, M, L, XL according to the "size chart" for the holiday Gift chart