C-Pack 1700B - Replacement Battery for Heated Insoles Heated baselayers 5 hours of heat with

5 hours of heat with 3 adjustable levels

They are a combination of tencel

and built with advanced micro-channel construction

5 hours of comfort

adjusting gear

C-Pack 1700B - Replacement Battery for Heated Insoles Heated baselayers 5 hours of heat withThis single Therm ic C Pack 1700B battery offers the longest runtime in the lineupup to 17 hoursand supports both manual and Bluetooth app control. Great as a spare or replacement for your C Pack 1700B set. Best attached to the tongue loop of your ski boot liner. Includes: 1x C Pack 1700B battery (USB charger not included) Heating duration: Level 1: up to 17 hours Level 2: up to 9 hours Level 3: up to 5. 5 hours Key features: Manual control or