Winner of the Design and Innovation Award and considered an essential MTB cycling accessory the Sealskinz MTB Hydrostop mid length sock features Sealskinz's proprietary Stretchdry waterproof and breathable fabric and also includes Sealskinz'sHydrostop technology which massively reduces water ingress above the cuff and holds the sock in place during long endurance riding. This highly acclaimed sock promises year round protection and comfort for all levels of rider.