As you must know by now, wool resists odor. We have found that is a good feature in a sock. They also wick and insulate better than cotton or all synthetic, so you can wear them comfortably in a pretty wide range of climates. Surly socks are made by DeFeet. They are Merino wool, with a small percentage of synthetic for increased durability. We offer many designs in a 5˝ height and a few knee-high models, check the website for availability, cuz we like to mix things up and keep you on your toes. The tall socks are thicker than the others and play well with knickers (as we call them here in the U.S. Yes, we know it means ladies’ underwear in the UK). Each design comes in four sizes so pretty much everyone should find one that fits.