Designed for training and racing all seasons, The Wonderful Socks are constructed in Polypropylene and Resistex Carbon. Innovative technological fibers. Breathable, resistant, insulating, lightweight, soft, antibacterial and comfortable. They are much more thermo insulating than virgin wool. Thanks to this characteristic function, your feet can be dry and warm in winter and dry and fresh in summer. These cozy socks are created to improve your everyday performances.