Skins Compression Series-3 X-Thermal 3/4 tights have a slightly thicker fabric than the basic Skins compression thermal tights. They are designed for medium intensity activity. Made with specially engineered thermal fabric that keeps you warm on winter runs without overheating. Great under a base layer for alpine and Nordic skiing or snowboarding. Sizing done by height and weight. This item is a new with tags sales rep sample. Retail is $129.99.