‎Polyester

【Upgraded Nanofiber Heating Elements】Upgraded nanofiber heating elements covers whole back of the hand,five fingers and finger tips. Warmer than ordinary battery heating gloves on the market. Especially the fingertips can give you more warmth. Perfect for anyone working in the cold. Rechargeable heated gloves can be stimulate your hands blood circulation and keep your hands warm on any chilly occasion.
【5 Layers of Superior Materials】The external layer of the heated gloves is windproof layer, effectively isolate cold air from entering. The internal part includes TPU waterproof layer, Thinsulate insulation, nanofiber heating elements and warm lining layer. Use Thinsulate cotton as the filler for our winter gloves, the heat retention is 1.5 times that of down and twice that of other highly-soft insulation materials!
【5 Heating Levels & 5000mAh Battery Powered】Bemkia Heated Gloves has 5 levels temp for choose(104℉~158℉) & 4 levels power display, just a simple press of the button, which makes it easy for you to adjust the temperature according to your needs. The heated gloves are equipped with a pair of 7.4V 5000mAh lithium batteries, which can heat up for up to 7 hours and take about 7 hours to fully charge.