Cold legs equal less circulation, and less circulation equals reduced performance. So when the temperature dips, pull on a pair of the SL Pro Thermal Bib Tights. They feature Italian ThermoRoubaix, brushed-back, stretch fleece that's soft, warm, and compressive--making them the perfect option for chilly training rides. And to top off the comfort, we've used our Body Geometry 3D Contour Chamois with a variable density design that places support and padding where you need it, not where you don't. - Fabric Content: MAIN: 52% Polyamide, 32% Polyester, 16% Elastane; OTHER: 55% Polyamide, 28% Polyester, 17% Elastane - Made from ThermoRoubaix brushed-back stretch fleece, these Bib Tights provide compressive warmth and a soft feel against the skin.