When I first received these socks I thought they were too thin to use as exercise socks.  However, they wick moisture away from the skin well, the bottoms have enough padding to be very comfortable, and they are snug through the ankle and lower thigh which probably aids in circulation.  So far they have worn well and they wash well.  I'm very satisfied with this purchase.  I'm not fond of the purple, pink, and blue champion logos on the top of the socks but generally they are hidden by my cross trainers.