Description Lightweight warmth for outdoor winter training. Constructed from our Aeroheat® fabric, a heat-generating and moisture-wicking material. Media touch-screen pads on the thumb and forefinger for electronics. Flatlock seam construction for comfort against the skin, elastic binding on the wrist, and reflective screen-printed logos. Designed For PRO | Specialized gear for high-intensity training and running. Fabric + Technology 92% Poly 8% Spandex Heater Napping Aeroheat® is a thermoregulating technology that absorbs light to radiate thermal energy. It provides warmth and moisture control in a lightweight performance material.