This Integrated Heating System Uses Your 5V Battery Of Choice To Spread Three Levels Of Warmth Across Your Back. Eco-Conscious Sorona® Insulation Helps Traps Heat Body With Or Without A Battery, And 15K Weatherproofing Will Keep Wet Snow And Moisture Outside.
Specs :
Heating System In Back
Insulated With 120G Eco-Friendly Sorona® Polyester