fabric/mesh puppy playpen (Freeville-Ithaca-Newfield)

Looking for one of those collapsible fabric/mesh puppy playpens with a built-in, waterproof floor. (I'm fostering a couple of bottle-feeder puppies who'll need to come to work with me for feedings throughout the day for another several weeks, and they're going to outgrow their current "baby bin.") Thanks!