I bought these socks hoping that they would be loose enough around the top that I could wear them. Unfortunately, they're not comfort top socks and they are tight and do leave a mark on my leg, so I don't wear them often. That's unfortunate because they're really nice socks,  nice length, and typical Calvin Klein quality - very durable and attractive.

September 2013 additional note: since the Hue comfort-top socks I bought at the same time proved to be so flimsy, I've worn these socks more. I've found that, with continued washing and wear, the roll tops have loosened enough that they don't leave marks on my ankles. The socks are holding up well through multiple washings also. Planning to buy more.