Hilly Men's Marathon Fresh Anti-Odour Running Socklets feature Polygiene Anti-bacterial treatment with breathable quick wicking fabric to remove perspiration. Made from a knitted soft feel nylon (polyamide) blended with Lycra Sports yarn for stretch to give an excellent fit. These socks will keep your feet odour free for all levels of sport and running distances. The top part of the socks features venting panels whilst all the pressure points are protected by extra padding. There are no inner seams under the toes for comfort.