The Progress INLINE SOX functional socks are made of a combination of DRYTEX® yarn and a special fibre with silver ions. DRYTEX® yarn has the properties of cotton but is softer to the touch, softer and is smoother than cotton and other synthetic yarns. It perfectly removes moisture. The socks are breathable and dry quickly. The silver ions in the special Prolen® Siltex fibre prevent the growth of bacteria, reduce unpleasant odours and maintain the biological balance of the skin. The socks have a reinforced foot, heel and toe and have a raised heel for better comfort. They are designed primarily for inline skates but are also great for other sports activities.