Stay warm without sacrificing style with our Women's ’HEATTECH' Scoop Neck Long-Sleeve T-Shirt, your go-to thermal base layer for cold-weather comfort. Engineered with UNIQLO's advanced ’HEATTECH' fabric, this long-sleeve tee uses innovative thermal technology to generate and retain heat from your body moisture. The lightweight, moisture-wicking fabric keeps you dry and cozy, while the soft stretch knit ensures a flattering fit that moves with you. Whether layered under outerwear or worn on its own, this thermal T-shirt delivers warmth and everyday versatility. - ’HEATTECH' Thermal Technology: Converts body moisture into heat for consistent insulation. - Heat-Retaining Fabric: Keeps warmth close to the skin without added bulk. - Moisture-Wicking Performance: Absorbs sweat and releases it as vapor to keep you dry. - Soft and Stretchable Knit: Offers a snug, flexible fit for all-day comfort. - Lightweight Thermal Base Layer: Ideal for layering under sweaters, jackets, or coats. - Classic Crew Neck Design: Pairs effortlessly with any outfit. Compare 3 Types of 'HEATTECH' Fabric: 'HEATTECH' - Lightweight yet warm, ideal for everyday layering. - Recommended for 41 °F to 68 °F for mild winter days or cozy indoor wear. 'HEATTECH' Extra Warm - About 1.5× warmer than original 'HEATTECH', offering added insulation without bulk. - Perfect for colder days with recommended temperatures from 23 °F to 59 °F. 'HEATTECH' Ultra Warm - Our warmest option, approximately 2.25× warmer than original 'HEATTECH'. - Designed for more extreme cold with a recommended range of –4 °F to 50 °F.