polyester soft, stretchy, breathable and comfortable to wear, wide top strap prevents rolling. Knee-high compression socks have nice and snuggly without being too tight and promote circulation effectively. These comfortable wide calf compression socks ready and for men & women, who wears in exlarge or large size. your legs, reduce fatigue, soreness, and injuries, cramping, swelling and help in muscle recovery. Great to workout office workers, parents or grandparents, runner, nurses and doctors.