64% Acrylic, 29% Nylon, 7% Spandex Made in the USA Truform 1932; Men's short crew style sport socks; 15-20 moderate strength graduated compression Padded shock-absorbing sole; Roomy toe and defined heel for comfort and fit; Wide rib knit pattern Improves circulation for extended sitting, standing, travel, muscle recovery, surgery, swollen feet Helps treat swelling, varicose veins, sore aching tired legs, edema, DVT blood clots Made in the USA; Measure according to size chart; Latex-Free; Nylon and Spandex construction