The Assos GT Winter Booties Shoe Covers Black utilize advanced NEOS Medium 3-layer softshell technology, featuring a waterproof and windproof PU bonded membrane to provide superior protection against the elements. Engineered for optimal breathability and insulation, these booties effectively block wind and water while maintaining a regulated foot climate and retaining warmth in cold conditions. Their flexible fit ensures comfort during intense rides, making them an essential accessory for dedicated cyclists braving winter weather.