Nexgen Heat MP7905 Men's Black Heated Winter Sock for Ski, Riding - Top and Bottom Heating Elements

Nexgen Heat MP7905 Men's Black 'Heated' Sock Liners with Top and Bottom Heating Elements (Rechargeable Battery Pack Included) Details Made of Soft Durable Poly Exterior Material Heating Elements on Both Top and Bottom of Foot Easy Adjust Calf Strap Too Fit Most Any Leg Comfortably Powered by 7.4V Rechargeable Battery Pack (Included) Included–Twin Batteries and Wall Charging Kit 3 Heat Settings: (Low-95f, Medium-105f, High-120f) Designed to be Worn with Thin Socks Only–Stay Toasty!