85% Nylon, 15% Spandex WIDE CALF DESIGN - Extra large wide calf size, premium elasticity fabric built for durability. Special design for women and men with extra large or plus size. More comfortable than standard compression socks, these big and tall calf compression socks provide strong leg support and long-lasting graduated compression, as well as ultra-comfortable wear with lightweight and breathable fabric. MORE SIZE CHOICES - Plus sizes (2XL-4XL) for ankle up to 15 inches, calf circumference from 19 to 26 inches. Please refer to the size chart to choose the appropriate size (generally, we recommend selecting the larger size if you are between two sizes). These knee-high compression socks offer snug, supportive fit without being too tight and help enhance blood circulation effectively. QUALITY & COMFORT - Constructed from durable nylon fabric for comfort and longevity. The stretchy yet strong fibers make the socks easy to put on and take off. They fit securely from toe to knee, promoting energized feeling in the legs. A comfortable wide top band prevents rolling and provides 360-degree stretch for greater flexibility and durability. Breathable high-performance fabrics maintain optimal temperature and wick moisture away from the skin to keep you feeling fresh and dry. COMPRESSION THERAPY INNOVATION - These compression socks (20-30 mmHg) feature graduated compression technology with varying pressure gradients from bottom to top, designed to support smooth blood flow from the feet upward. Improved circulation helps promote healthier legs and reduce discomfort associated with swelling and fatigue. Graduated Compression Stockings help support legs, reduce soreness, prevent cramping and swelling, aid in muscle recovery, and provide relief for varicose veins. HIGH PERFORMANCE + EVERYDAY WEAR - Compression socks are designed to support enhanced performance, faster recovery, and relief from physical strain. They offer optimal muscle support and are ideal for individuals who spend long hours standing, as well as those leading active lifestyles. Suitable for joggers, athletes, fitness enthusiasts, office workers, nurses, doctors, and more.