Boot doc bd socks mens these high tech boot doc bd socks are designed for better blood circulation and maximum comfort within your boots the sock offers a perfect fit thanks to its anatomical design and ribbed leg opening finished with bd boot doc branding mens socks ribbed ankle collar perfect fit anatomical design maximum comfort better blood circulation boot doc branding 44 polyester 32 polypropylene 16 nylon 6 merino wool 2 elastane machine washable blac