The men's SKI MERINO REFLECTOR MEN Blue Gold from Therm-ic features Therm-ic Warm Reflector, a technology that reflects and retains the heat generated by the foot. The structure ensures great breathability and efficient transfer of moisture to the outside, allowing faster drying and preventing the appearance of bad odors. Features: Composition: 32% acrylic, 25% polyester, 21% polyamide, 10% Merino wool, 10% polypropylene, 2% elastaneTherm-ic Warm Reflector technologyHeel and toe reinforcementsShin, calf and instep protectorsMicro-ventilated footbed to wick away perspiration Socks Therm-Ic ---Ski Merino Reflector Men Blue Gold