85% Nylon, 15% SpandexEXPRESSION SOCKS - We enter combining fashion, technology and science to bring you the triple comfort without The material of our compression socks are upgraded with nylon percentage from 40% to 85% Delivers 360 degree stretch for greater flexibility and durability Breakable high performance fabric keeps an optimal temperatureCOMFORT - We carefully designed and manufactured our compression socks to provide premium support, comfort, and relief without compromising your mobility Form fitting, lightweight, and breathable fabric features maintain stability regulations of activityEFFECTIVE - Our compression socks (15-20 mmHg) are highly recommended by preferred by trainers These are designed to promote blood circulation and oxygen flow prevention mechanism and help in muscle recovery Where are you an athlete, teacher, flight crew, receptionist, office worker, presenter, nurturing mother, elderly, our socks are universally suitable for all worksizeS/M (recommended 34-39)L/XL (recommended 40-46)