After finding my no-show socks lacking in several respects, I came across these and they are a nice thickness, comfortable material, and actually don't slip off my heels on either my 2 miles walk each way to/from work or while I walk around in them all day! And there are no lint/fabric particles left on my feet when I take them off. I also like to wear them around the house instead of my slippers. They are great to wear with my tennis shoes, but are not very "no show" in my heels. I still rated them five stars because I don't think this minor short-coming warrants the loss of a full star, and they are athletic socks after all.