83% Nylon, 17% Spandex Made in US Truform 1774; Ladies fashion style support hose; dress nylons; 15-20 strength graduated compression Lace trim top band with silicone grip liner; Knit heel pocket keeps sock in place; Breathable Improves circulation for extended sitting, standing, travel, pregnancy, muscle recovery, 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