Series Heatwave gloves utilize Series’ Dual Stage Heating System: First, Series’ proprietary, engineered thermal reflective layer, made with a proprietary, high wicking, polyester/nylon blend, retains 20% more warmth inside the glove than traditional linings; then a kinetic process creates a 4-5 degree increase in this heat from wicking energy. It’s a whole new level in warmth for a non-battery-heated glove. Series Sound Touch patent pending technology uniquely allows connectivity to pass from your finger to the touchscreen, even through insulation layers and a waterproof/breathable membrane, facilitating warm, dry and comfortable gloves-on operation of smartphones, digital music players, cameras and other touchscreen gadgets.