I had mistakenly hit the wrong size in ordering several for one friend, needing an XL I ordered a small, instead of going through the exchange process, I gifted this to a young high school senior who is a size small. To my surprise he through his friends had heard of Pair of Thieves and really has wanted some. This was a Christmas present and this being early January he has told me has worn and washed them five times and thinks they are the best thing ever and keeps thanking me for them, with a different comment about the fit, feel and looks each time I talk to him. It looks like my gift giving for him each year just got a whole lot easier, Thanks Pair of Thieves!