I wear a 7 or 7.5, depending on the company.  These socks aren't too thin and they're not super thick, so they pair awesome with my new hiking boots. They are high enough that I can scrunch them down around the top of my boots, which helps keep the dirt and debris out.  Very soft and comfortable and no irritating toe seam.  Waterproof boots and wet wicking socks...my feet stay completely dry. Great price, great socks...love em!