At first it was really hard to open and close them, but within a couple days they loosened right up.  I am a nurse and I have a problem with my scrub bottoms slipping down as I run around all day, so I wear these between my t-shirt and my scrub top, they do their job, and no one can see them.  Not the best quality but I've had them for 3 or 4 months now and they are still holding up fine.