I've only washed it once using cold water. I let it hang air dry for a bit then ran a warm iron over it. I probably will see it "loosen up" as I wear it more.

mmmmmmm, ironing cammies! My wife thinks I'm crazy because I actually enjoy ironing. While in the corps, when I couldn't sleep I'd iron cammies. After about two sets ... out like a lite. It's better than counting sheep. They could create a therapy class around ironing. I guess consentrating on getting pockets flat gets rid of any distractions. Good days!