Hello!  I love this item!  The only problem is that I used it for a crate, and my tricky little dachsunds figured out how to get out of the bottom!  The velcro was not enough to keep them in.  So now I have them in a separate room with a gate, and they love sleeping in there!  Haven't used it at the park yet, but it comes with plastic stakes, that I'm sure will keep the little buggers in!