Heated Socks by Sharper Image

Three heat levels: High (2.5+ hrs), Medium (3.8 hrs), Low (8 hrs) Moisture-wicking polyester and Spandex interlock for dry, snug fit Rechargeable batteries (2 oz each) tuck into side pockets Unisex black design in XS, S/M, L/XL, XXL sizes Includes dual battery charger and ”Y” cable for convenience