Ideal for all journeys30 denier semi sheermedically provencompression factor 14 17to help prevent deep vein thrombosis dvt in flightclinically proven graduated compression system to improve circulationhelp to prevent swollen ankles and tired aching legsantimicrobial protection keeps feet fresh and odour freewhy you should wear scholl flight socks sheerlong periods of inactivity combined with the cramped condit