The Gore Wear Shield Thermo Overshoes utilize single-piece construction for a complete level of protection that surrounds the foot. Built to withstand very cold conditions, these shoe covers are tailored from a continuous piece of Gore-Tex Inifinum, a material that is engineered to completely shield against wind and provide a water-resistant barrier from bike spray and light rain. Uni-directional stretch material allows not only a tight, streamlined fit but also freedom of movement. An even further level of warmth is sustained with help from the ultra-soft fleece-lined backing of the shoe cover.