The Therm-ic TrimFit Heating System• 1 pair of Therm-ic heating elements with connecting cables.
• 1 pair of self-adhesive Cambrelle\xAC fabric covers and straps to prevent your socks from catching the wires or heating elements when you slide your foot in or out of your boot.
• One size fits all.
The Therm-ic TrimFit Heating System is designed for the custom adaptation to a snug fitting boot or special insoles. The TrimFit Heating System are compatible with all Therm-ic Powerpacks batteries.