I picked up a couple of pairs of the sport and a couple of pairs of the crew socks to give them a try. Initially, I was surprised at how thin the socks were which gave me cause for concern. I played with the sport length Friday afternoon (was wearing shorts) and they were very comfortable. I played Saturday morning with the crew length (was wearing slacks) and they were awesome. The crew length went all the way to the top of my calf and provided excellent support. Kept them on all day through the kids baseball games, etc. (i.e., a lot of standing) and my feet felt great.