Mens HEATTECH Ultra Warm T-Shirt Black XS UNIQLO US

2.25 times* warmer than our regular HEATTECH. *Based on CLO values, which indicate the thermal insulation of clothing. In comparison with standard HEATTECH. Wicks away moisture to keep you feeling fresh. Features a silhouette that feels like a long sleeve T shirt or sweatshirt and styles on its own. Mens HEATTECH Ultra Warm T-Shirt Black XL UNIQLO US