Seirus Innovation Heatwave All Weather Mens Polartec Glove Shell: 50% Polyester/40% Nylon/10% Spandex; Palm Patch: 100% Polyurethane; Lining: 100% Polyester; Cuff: 100% Nylon Imported The heatwave glove uses patented "heatwave" technology from Seirus Innovation. See the product description below for more information on heatwave Weathershield shell with ultragrip palm blocks wet and cold Fleece lined with a knit cuff for a comfortable fit Thermodynamic lining keeps your hands warm and Dry Versatile glove great for outdoor activity