I have a girl who can jump like that.. she's even jumped out of the TALL x-pens .. The only gate that she has no interest in jumping seems to be this one...
http://www.target.com/Dream-Baby-Hal...e=1&rh=&page=1
Not sure why ... we've had it up over a year and so far so good...

plus I really like that it has a gate to open. ( hubby likes it too..)