THERM-IC Ultra Heat Boost Heated Gloves Women"Advantages of the Boost Heat Technology Higher heating speed Higher heat intensity Faster charging of the batteries Mostly made of recycled materials The Ultra Heat Boost Gloves Women are heated ski gloves featuring Primaloft insulation technology, providing insulation and waterproofing. They feature 3 heat levels for up to 7. 5 hours of warmth. With heating elements that wrap around the fingers and the top of the hand, they ensure better heat