Thermal fabric with brushed interior is engineered to trap and retain body heat;Articulated back-of-knee removes excess material;Stretchable rear elastic waistband keeps things put;Soft fold-over front waistband prevents band from cutting in;Tapered ankle design with ample stretch keeps tights close to the skin;Strata inForm Chamois: dual-density foam pad;The fitted cut provides a streamlined body fit for enhanced performance;