Endura fs260 pro sl socksthese endura fs260 pro sl socks have been updated with a 200 needle construction for improved performance and support without creating additional bulk the soft feel meryl skinlife yarn with anti bacterial finish and flat seam toe come together to create a functional yet comfortable sock featuresmaterial 85 nylon 15 elastanesoft feel meryl skinlife yarn with anti bacterial finishhigh density mid foot elastic for support and stabilityflat seam toe for comfortbuyendu