●60% Cotton, 20% Spandex, 15% Polyester, 5% Rubber ●Imported ●Machine Wash ●X-Type Bandage Compression Design: The compression value of compression socks is 16-23 mmHg, which is proven to improve blood flow, move faster, react quicker, and consume less energy. Targeted compression zones provide varying levels of support from moderate to extra firm. These ankle compression socks are designed to promote blood circulation and oxygen flow, to prevent from cramping, fatigue, swelling, and to help in muscle recovery. ●Moisture Wicking Cotton: Compression running socks are made of high-quality combed cotton (60%), which has a better function of moisture wicking and keep your feet dry. The terry-lop cushioning designed makes you feel soft and comfortable, and absorb impact force to reduce friction and relieve foot fatigue. (15%) polyester for anti-deform and (20%) spandex for elasticity increasing ●Anti-Slip Achilles Tendon: These cotton compression socks have a two-way 360-degree balance function to fix the Achilles tendon of your foot. Using the two-way elastic compression function allows you to achieve fixed support and protect your Achilles tendon from getting hurt during exercise, and also these running socks wont slip off, superior to others on the market which dont have this function. ●Relieve Fatigue Arch Support: The 3D bandage compression designed of the arch not only keeps your arch stable, secure, and effectively relieves the fatigue of the arch but also makes you feel more air cushioned while walking. The sports compression sock is perfectly fit your feet and it can provide protection for your arch when youre running, dance, cycling or any kind of intense exercise.