90% Polyester 10% Elastane Imported Rechargeable and Adjustable - Heated glove liners generating gloves use 7.4V 2200 mAh rechargeable lithium-ion batteries to provide a heat source for the gloves. Heated glove liners can be adjusted for different temperature situations. New Switch Design - Heated glove liners use a new switch to increase the remaining power display, making it easy to charge in advance and prevent the battery from running out of power outside. Thoughtful Details Design - Heated glove liners made of palm anti-slip fabric, anti-drop buckle, adjustable wrist strap, all from the actual needs. Applicable Outdoor - Heated glove liners made of multi-layer different fabrics, with thick gloves to use more warm, can be fully applicable to skiing, driving, fishing, hunting, camping, riding and other scenarios. Gift and Service - Heated glove liners are exquisitely packaged and are great as gifts for family and friends. If you have any questions about the product, please feel free to contact us.