Bridgedale Storm Lightweight Boot Sock - Grey

100% Waterproof knee length sock Prevents wind chill, the lowering of body temperature due to the passing flow of cool air across the skin, exacerbated when skin is wet. The inner is primarily knit with Merino Wool, known for its anti-bacterial, anti-odor and moisture management properties to keep your feet warm, dry and comfortable. An extremely durable and long lasting outer sock protects the Waterproof Membrane against abrasion from the boot. A stretch PU membrane together with a matrix lamination process bonds the three layers of Storm Sock together ensuring they have excellent stretch.