Seirus Innovation 2120 Thermax Heat Pocket Mitt Liner Shell: 100% Polyester Cuff: 100% Nylon Imported 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 mitt, or as a mitten liner THERMAX MORE - More stretch, more warmth, more wicking, more windblock and incredibly comfortable! FORM FITTED - Cut and sewn to ensure a comfortable fit INSULATED - The liner has a thin insulating inner layer and an ultra-warm and soft outer layer THERMAX gives maximum comfort and wicking Warm enough to wear alone The warmest liner for mittens Dry, wicking warmth