HJ Hall Protrek Rambler Boot Walking Socks Unisex size 11.5-13UK Navy HJ800p. Composition 65% Wool, 35% Polyamide. Rambler socks have natural moisture absorption and great insulation properties, inherent through its wool rich composition and deep loop pile, providing the perfect environment for your feet. With full terry throughout and a specially engineered comfort toe seam to prevent abrasion, this sock will ensure your feet are protected no matter what you put them through. These socks have a comfort top with soft elasticated welt grip. TriSeal technology, unique to HJ Hall,to produce a revoluntionary walking sock that provides triple protection helping to seal your feet into the perfect environment. It is a unique treatment added at the final stages of the manufacturing process specifically designed for woollen socks being used in the outdoor environment. Whether tramping through wet grass,dodging puddles or trying to avoid the mud the Tri-Seal application ensure that your feet stay comfortable. 1) Water repellent 2) Moisture Management 3) Stain resistant. We on the nursery would not wear any other type of sock these are the best at a good adfordable price.