65% Nylon, 15% Polyester, 20% Spandex GRADUATED COMPRESSION: Our knee high compression socks give you 15-20 mmHg moderate compression. The socks are made of 25% spandex and 75% quality nylon which can provide maximum compression at the ankle with a progressive reduction through the calf promoting blood flow back to the heart. Zippered compression socks are a great choice for the treatment of varicose veins, edema, post surgery recovery, swelling muscle pain, tired legs, spider veins, bad circulation and shin splints. EASY ON COMPRESSION SOCKS: Compression socks with zipper are easy to put on and take off. The high quality zipper stays snug fit. The extended zipper handle allows you to easily use the compression socks by yourself without help. Inner fabric under zipper protects skin from rubbing against zipper. BEAUTIFUL COMFORTABLE: Fine yarns for a beautiful sheer look, soft feel for all-day wearing comfort. Durable and opaque sock is created with therapeutic comfort in mind for both men and women, younger and elder. Closed toe style designed with a roomy toe does not compress toes. SUIT YOUR ACTIVITIES: Designed for everyday use and outdoor activities. It's perfect for jobs that require you to be on your feet a lot. Doctors, nurses, teachers, flight attendants, hairdressers, salesmen, police officers, the elderly and people recovering from surgery can benefit from 15-30mmhg zipper compression socks.