Seamless leg warmers Highly breathable Excellent ventilation Ergonomic fit to right and left leg Muscle support knitting zones 85% Polyamide 15% Polyester Size: Large/Extra Large The first layer system with 3D knitting technology covers the body without feeling cramped. It perfects the function of the skin under the principal of a modern air condition: cools down in summer - warms up in winter. That means more performance. The bacteriostatic effect works anti bacterial and neutralizes odour.