The Powersocks Heat Fusion heated socks for women combine technicality, comfort, and breathability for an optimal skiing experience. Their micro-channel design effectively wicks away moisture, ensuring a dry foot sensation. Additionally, they offer superior comfort in sensitive areas of the foot, such as the shin, calf, and instep. Equipped with Moisture-Vent technology, these ski socks efficiently wick away moisture generated at the arch. The macro-channels around the foot guide moisture out of the ski boot, thus enhancing foot breathability. The Powersocks Heat Fusion provide gentle and pleasant warmth across the toes, offering up to 16 hours of heat, depending on the type of battery used. Please note that batteries are not included with the socks. Materials: 40% acrylic - 28% polyamide - 17% merino wool - 7% polyester - 6% polypropylene - 2% elastane Breathable socks with a snug fit Easy and quick battery attachment with snap buttons Heel and toe reinforcements Heat Fusion technology: for even heating around the toes Therm-Ic Powsock Heat Fusion - Ski socks - Women's | Hardloop