The Espresso Bib Tights are made with optimal cold weather comfort in mind. Using soft, stretchy, fleecy fabric and built around Castelli's best, multi-layered seat pad, they are constructed with airy mesh straps and minimal seams, for a smooth finish.Your most comfortable cold weather option:Made from warm and stretchy Thermoflex fabricStretch mesh straps for ventilation and comfortBuilt around the long-distance pro Progetto X2 Air Seamless seat padLow bulk, zipperless anklesWith reflective tab on backs of legsWeighs 281gMade for temperatures of 4-15°C