S-Pack 700B - Batteries for Heated Socks spo-disabled Double sock "Future Vent" :

Double sock "Future Vent" : inner mini channels enabling more efficiency in ventilation

The graduated compression fit supports circulation and stability

keeping warmth locked in during descents

and precision fit for modern riding footwear

IQ Fit construction: Provides an easy-on graduated compression fit that retains its shape and support all day

S-Pack 700B - Batteries for Heated Socks spo-disabled Double sock "Future Vent" :The S Pack 700B battery pack delivers up to 7 hours of warmth and lets you control your Therm ic or SIDAS heated socks via Bluetooth on your smartphone. Set includes two Bluetooth enabled rechargeable batteries and a dual USB charging cable (charging cube not included). What's Included 2 S Pack 700B rechargeable batteries 1 USB charging cable (dual charging) charging cube NOT included Heating Duration Level 1: up to 7 hours Level 2: up to 4 hours