Developed with the fastest riders on the planet in the form of madison saracen the alpine sock is suitable for all types of mtb jauntsthe primaloft performance yarn is both soft and hardwearing ensuring it remains in tact and comfortable through the entire world cup season and beyondthe fast drying yarn dries 20 faster than merinosuitable for riding in both warm and cool weatherfeatures a terry fabric insert in the toe and heel for added warmth and comfortribbed arch support gives a great fitth