Lenz 5.1 Heat Sock
Lenz 5.1 Heat Sock, We gear up with the Lenz 5. 1 Heat Sock to keep numb toes at bay on the mountain's chilliest days. This sock features a flat heating system integrated into a mix of high-performing materials for up to 14 hours of all-around warmth. The low-profile rechargeable battery pack snaps right in and out of the sock cuff and can be controlled directly or from the Lenz heat app on our phone to adjust the temperature.