Seirus Soundtouch Heatwave Liner - Men 's: Keep your hands warm while on the slopes by inserting the Seirus Heat Wave Glove Liners into your gloves. The dual-stage heating system reflects your body heat to generate warmth for your hands. The 83% polyester and 17% spandex construction stretches to fit your hand, and the ambidextrous design allows you to wear a liner on either hand. Features and Benefits Dual-stage heating system uses your body heat to create warmth Made from 83% polyester and 17% spandex for comfortable wear Ambidextrous design can be used for either hand Machine wash cold; lay flat to dry Specifications Activity: Skiing Gender: Adults ' Material: Polyester blend Seirus Soundtouch Heatwave Liner Mens | Black | S/M | Christy Sports