Unfortunately, the dog (a terrier) had out shortly how aufkriegt the zipper. Lean against and the RV goes out of his teeth. Then he can again properly addressed, but not very stable. Since the ground is dire, the hut can run, be overturned. It is no more than a palliative for active dogs. The quiet dogs leave it at home happen to be protected therein. Despite the poor RV solution has an opening at the front would also be very helpful. The idea is good, because the part is more flexible than a plastic case, but everything you can not have, especially for the price. Let's hope that purely fits the dog.