Our exclusive Heatwave Liner from Seirus Innovation as a stand alone glove liner lets you increase the heat of any glove with the new HEATWAVE revolutionary dual heating system. Heatwave kinetic heat return system amplifies reflected heat through thermal reflective technology (up to 20% warmer) and kinetic energy (amplifies temperature 4-5°). 100% Polyester WAVES OF HEAT - Kinetic heat return system amplifies your body heat 4-5 degrees, and reflects it back to you for 20% more warmth VERSATILE - Can be worn as a stand alone lightweight glove, or as a glove liner COMFORTABLE - Form Fit design STRETCHY CUFF - Keeps the cold from creeping in BREATHABLE - Highly wicking, with breathable comfort​​