The endura coolmax long sock twinpack is constructed with high stretch coolmax lycra providing you with a breathable and dry cool comfort fit the material has fast wicking properties giving you maximum comfort throughout the whole day this endura sock features a longer height with a lycra support zone at arch all adding to the comfort the endura coolmax long sock twinpack promises all day comfort for all riders endura coolmax long sock twinpack features high stretch coolmaxlycra