Womens HEATTECH Ultra Warm T-Shirt High Neck with Moisture-Wicking Off White Small UNIQLO US

2.25 times warmer than our regular HEATTECH. *Based on CLO values, which measure clothings thermal resistance. Comparison with standard HEATTECH. High performance fabric with Heat Absorption, HEAT RETENTION, and moisture wicking comfort features. A warm layer with a fluffy, brushed lining. Stretch fabric allows easy movement even when layered. Warm, high neck with a comfortable fit. Womens Heattech Ultra Warm High-Neck T-Shirt with Moisture-Wicking Off White Medium UNIQLO US