Cushioned sole & heel compression socks are designed for comfort and all day durability. Whether you are standing or walking all day, compression socks help prevent aching legs, ankles & feet. High-Performance Nylon provides natural moisture management 3 zones of compression increase leg energy, circulation & stamina Seamless toe enclosure. Perfect for under-layering. Lightweight (15-20 mmHg) compression socks are designed to provide extra light-duty comfort and foot swelling relief for those on their feet all day. Great for use while pregnant, relief from minor varicose veins and tired/aching legs. Fabric Content Made with high-quality, eco-friendly, certified sustainable Black Reprieve® nylon Constructed of 90% Post-Consumer Reprieve® Nylon & 10% Spandex. Learn more about how these socks are made from recycled plastic bottles Soft & durable. Latex-Free. Proudly made in North Carolina, USA. Sizing Knee High, Open Toe, and Sleeve Compression Sock Sizing Printable tape measure SIZE ANKLE CIRCUMFERENCEINCHES CALF CIRCUMFERENCEINCHES SHOESIZE SMALL 7.5 - 8.25 11 - 14.5 5.5 - 7 MEDIUM 8.25 - 9.5 14.5 - 16 7 - 9 LARGE 9.5 - 11.5 16 - 18 9 - 10 X-LARGE 11.5 - 13 18 - 20 10 - 11.5 XX-LARGE 13 - 14.5 20 - 22 11.5 - 13 PLUS SIZE 1 11.5 - 13 20 - 22 7 - 11 PLUS SIZE 2 13 - 14.5 22 - 24 7 - 13