The Solano 2 Tights offer a good balance between protection from the elements and heat retention. Heatmaxx fabric is an opaque knit with a brushed back that efficiently retains body heat, while Light WindDry 2 fabric is made of a micro-perforated polyurethane membrane that blocks wind and repels water. An additional layer of Light WindDry 2 fabric at the front and upper back provides additional protection from wind and water so you can keep up with your training session no matter the weather. . . . HeatMaxx: 4-way stretch opaque construction knit with brushed back. . Additional layer of Light WindDry 2 at front, lower front and back: Offers protection against water and wind. . Elastic waist with drawstring. . Flatlock seams. . Articulated knees. . Signature ankle grippers. . Reflective accents. . Weather: Cold/Wind. . Imported. .