The Rev\'It! Charger Motorbike Socks are packed with features... PROTECTION FEATURES Outer Shell Multi Yarn Polypropylene, Polyamide and Lycra Round Knit Composition - 56% Polyamide, 41% Polypropylene, 3% Elastane ERGONOMIC FEATURES Fit Mid Calf - This product has been designed to reach/cover the mid calf Features 3D Round Knit Technology - Seamless 3D round-knit garments provide superior comfort and technical function for a wide range of athletic activities, including motorcycle riding. The 3D name comes from the texture and shape of the roundknit. Made on a circular knitting machine, seamless garments have superior elasticity for optimal shaping to the body. The virtual lack of seams results in optimal comfort, while also imparting important functionality: fewer seams make the garment less vulnerable for seam breaks, drop stitches, etc., and therefore longer lasting. Those seams that are absolutely necessary are made using flatlock technology to eliminate bulk. The result is the ultimate in comfort and function Thermoregulation Polypropylene Yarn - By using a thermoregulation polypropylene yarn, this garment\'s ability to draw moisture away from the body is increased, allowing sweat to dissipate so the rider stays cooler in warmer temperatures Roundknit Construction With Lycra - The roundknit construction means that there are fewer seams used when creating this garment. Fewer seams mean increased comfort, support and cooling in places where traditional seams could create unnecessary chafing or discomfort. By adding Lycra to the roundknit construction, it allows for more flexibility and stretch, providing an ideal fit to the end user Multiple Cushioned Areas - To provide both comfort and protection, this product has cushioned areas at the ankle, foot sole, heel and toes