S-Pack 1400B - Batteries for Heated Socks Ultra Warm Check out the Heat Kit

Check out the Heat Kit + C-Pack 1700B bundle for up to 17 hours of warmth

and featuring advanced micro-channel construction

1 pair of S-Pack 700 batteries

making them ideal for cross-country skiing and Nordic training in cold conditions

S-Pack 1400B - Batteries for Heated Socks Ultra Warm Check out the Heat KitThe S Pack 1400B battery pack offers up to 14 hours of heating power for Therm ic and SIDAS heated sockswith full Bluetooth control from your smartphone. This set includes two Bluetooth enabled rechargeable batteries and a dual USB cable (charging cube not included). What's Included 2 S Pack 1400B rechargeable batteries 1 USB charging cable (dual charging) charging cube NOT included Heating Duration Level 1: up to 9 hours Level 2: up to 6 hours Level