Seirus Innovation 2115 Thermax Glove Liner with Heat Pack Pocket for Ultimate Warmth - TOP SELLER EXTRA WARMTH - An integrated heat pocket allows you to store a heat pack in the glove for hours of extra warmth VERSATILE - Can be worn as a stand alone lightweight glove, or as a glove liner THERMAX MORE - More stretch, more warmth, more wicking, more windblock and incredibly comfortable! FORM FITTED - Cut and sewn to ensure a comfortable snug fit INSULATED - The liner has a thin insulating inner layer and an ultra-warm and soft outer layer