SIZE :One Size fit for 7-13,Suitable for men and women MATERIAL:80% Nylon, 20%Spandex,The high elastic soft material is fit for human skin,breathable and moisture wicking will keep your feet dry and comfortable.Its thickness is fit for whole year and keep you with fashionable look everyday! FANTASTIC COMPRESSION SOCKS WITH 20-30mmHg: The graduated compression gives you different kinds of support at the same time. It speeds up the return of blood from your feet to your heart to give you a relaxing feeling after exercises.helps in muscle recovery, spider, varicose veins and diabetic. GREAT SUPPORT:Vertical stitch on the socks is better fit for calf and ankle, non-slip, meanwhile give feet special support,let you enjoy the sports. GOOD CHOICE:Whether you are an athlete, sportsperson, nurse, teacher, flight crew, receptionist, office worker, pregnant , recovering patient, nurturing mother, elderly… It’s suitable for all work.Meanwhile fashionable design It’s will be good gift to your family and friends!