Pack SET with 1 pair insole Heat Flat + 1 pair of C-Pack 1300 batteries. Up to 13 hrs of warmth to keep your feet warm. Enjoy winter exercise to the full with the Therm-ic Insoles Set. Therm-ic Insoles Set includes a pair of heated insoles Heat Flat and 1 pair of C-pack 1300 B batteries.

Features:
Fitted with ultra-fine heating elements, the insoles diffuse constant heat for immediate well-being and an optimal foot temperature.
The C-pack batteries provide up to 13 hrs of heat.