For the adventurous woman looking to try something new in the quest to conquer cold, Seirus has transformed its Heatwave™ fabric into the Seirus Heatwave Women's Mapped Baselayer Bottom. Using three fabrics Seirus has engineered this baselayer into a pair of pants that not only will keep you comfortable under your ski pants, but are designed to work as a state of the art winter running legging as well. A space age use of Heatwave™ reflective technology which warms the key muscles and arteries in your legs, increasing blood flow to your extremities, combined with Max Wick™ for increased breathability where you need it and Polygiene® Mesh Anti-Microbial Ventilation Zones for focused perspiration evaporation0 warmth and the necessary wicking breathability to create the perfect climate zone next to your skin. Anti-chaffing flatlock seam construction, a gusseted crotch, and a comfortably smooth waistband give this a waist to ankle secure fit, while the spandex infused four way stretch gives you complete freedom of movement. Reflective strikes on the legs add visibity when you’re out on an evening run. A leap forward in synthetic baselayer design calculated to keep you comfortable without forcing you to pile on the layers just to get out and enjoy winter.