- Lightweight, thermal base layer designed with HEATTECH technology to keep you warm without any bulk.<br>Thin and light yet warm. Sleek tights, perfect for layering.<br>- High-performance innerwear with HEAT RETENTION, Heat of Absorption, odor control, DRY technology, shape-retaining, moisture-wicking, and deodorizing features. <br>- Ultra Stretch fabric for comfort and easy movement. <br>- These cozy tights keep your legs and waist warm with a comfortable fit. <br>- Smooth fabric.