Made from a super durable blend of polyurethane and nylon, the Pearl Izumi P. R. O. Thermal Toe Covers ensure that your feet remain protected regardless of how much use they receive. The tough Kevlar underside resists tearing and makes them durable enough for both the road and trail. Durability doesn't mean much without function, so Izumi designed the Thermal toe covers to slip on easily and to stay in place. Pearl Izumi's Power Band closure system uses two hook and loop straps in order to ensure a secure, next to shoe fit. The Power Bands also make taking the covers off while pedaling a simple affair. Pearl used its P. R. O. Softshell material for the uppers of the covers. The material is wind and water repellent, which means that it blocks headwind while also preventing wheel spray from reaching your shoes. As a result, you stay comfortable for the whole ride, not just the first half. Finishing off the construction, Izumi added reflective accents that increase your visibility to motorists in low light conditions. The Pearl Izumi P. R. O. Thermal Toe Covers are available in the color Black and in the sizes SmallMedium and LargeX large.