• Thorlo Running Socks
• Flat Knit Instep and cushioning in the arch for a better fit.
• Cushioning over the toes to help protect against runners toe.
• Low profile toe seam won't rub or irritate feet.
• Small fits Women's US Shoe Size 4-6
• Medium fits Women's US Shoe Size 6.5-10, Men's US Shoe Size 5.5-8.5
• Large fits Women's US Shoe Size 10.5-13, Men's US Shoe Size 9-12.5
• Extra Large (XL)fits Men's US Shoe Size 13-15