Graduated compression from ankle to calf; Contoured leg and heel for a superior fit; Flexible toe pocket for extra comfort; Spandex throughout the sock for maximum comfort; Help energize legs, reduce swelling, alleviate achiness and heaviness, and aid in muscle recovery; Compression level: 30-40 mmHg; Material: 75% Moisture-Wick Nylon, 13% Nylon, 12% Spandex (Latex-free); Designed in Missoula, MT; Made in Taiwan