Size Large - fits men's shoe size 9-13 Non-binding leg reduces constriction, swelling, and leg fatigue Mid calf socks have a half cushion foot for added comfort and impact protection Seamless toe reduces irritation at the toes for ultimate comfort Mesh leg provides breathability for a cool feel Wrangler Non-Binding Boot Socks Have a Half cushion foot for better fit and support. Arch support in these Socks allow for a better fit on your foot. The Polyester material wicks moisture helping keep your feet dry. A stay up top and smooth toe seam enhance the comfort and keeps the sock in place on your foot.