Size/Fit Summary: Sizes run slightly large ﾨC we recommend the following sizing for wearing with your Original Tall Hunter Boots. Size M = US Women's Size 5-8. Size L = US Women's Size 9-11,US Men's Size 8-10. Size XL = US Men's Size 11-13.Designed to slip inside our Tall Rain Boots,the grey Recycled Knitted Socks are made from 100% sustainable recycled polyester fleece for insulation. Now with a new improved fit,these socks are finished with a recycled poly-yarn cuff that will fold over the top of our rain boots.Certified vegan100% Recycled polyester fleece leg for warmth100% Recycled poly-yarn knitted fold down cuffDesigned to fit the Tall Rain bootPVC logo brandingUpdated improved fit for added comfort