Gore oxygen socksthese are super lightweight socks for the road cyclist the toe seams are flat so they do not rub and chafe and the moisture wicking material keeps you cool and dry features materials 90 polyamide 10 elastane left and right anatomical structure foot arch with anti twist elastic band for extra grip super flat zero friction seam double looped inside and outside main structure made with light mesh for comfort 2 way elastic mesh with alternating stitched knitting for best persp