Can something as simple as socks make a difference in your day? Definitely. Guide GearA(R) Wool-blend Midweight Boot socks are difference-makers in several ways. First, they're extremely soft and comfortable, with the perfect blend of fabric that hugs your foot and calf without being too restrictive. Secondly, these over-the-calf Boot Socks are specially designed to provide arch support and cushioning, because you need all the comfort you can get when you're wearing boots all day. Last but not least, they're built to last, with reinforced heel and toe. It all adds up to great value...and a great day. And it all started with your socks. Men's over-the-calf boot socks Midweight, moisture-wicking wool blend 48/16/25/9/2 acrylic/wool/nylon/polyester/spandex Reinforced heel and toe Arch support Full cushion in leg and footSizing Details: Medium: Fits Men's shoe size 5-9 Large: Fits Men's shoe size 9-12 XL: Fits Men's shoe size 12.5-15