Warm enough to wear alone and thin enough to layer, the Heatwave™ glove liner provides a base layer that drastically changes how you feel in the cold. With Soundtouch™ touchscreen control you'll never need to expose your fingers to the cold again. The revolutionary dual heating system found in the Heatwave™ lining reflects and amplifies your body’s heat to produce that warm cozy feeling we all look for in a glove. Reflective Heat, Amplified. Thermal Reflective stage - up to 20% warmer. Kinetic stage - Amplifies Temperature 4-5°. Recommended for: wearing alone on cold days or layering for extreme warmth.