Under Armour ColdGear Cosy Legging Women's Running Tights 87% polyester Dual-Layer EVO ColdGear Construction - A smooth exterior membrane dries quickly whilst a brushed, heat-retentive interior insulates the wearer consistently. Mlange Texture - Sits comfortably against the skin whilst lending the piece an intrinsically modern aesthetic. Signature Moisture Transport System - Wicks sweat away from the skin to encourage a drier, fresher environment. 4-Way Stretch Construction - Maintains shape whilst accommodating a full range of motion. Flat, Yoga-Inspired Waistband - Sits comfortably and unrestrictively across the hips.