Update: We traveled quite a bit this holiday season and this portable crate was absolutely awesome! I have seen some reviews about bad zippers but suspect it's due to misuse. You have to raise each side before zipping it -- just common sense, people. Otherwise, there is too much pressure on the zipper. I think zippers on this crate are sturdy. Another suggestion is placing your dog's favorite bed inside. The crate (we have extra large) has plenty of room to add an extra large fluffy dog bed our dog loves. Because the crate folds flat, we place the crate in the cargo area and cover it with dog's bed when on the road. The dog sprawls like a queen! :) When we get to the destination, we unfold the crate, throw the bed inside, and voila -- cozy house that ... full review
Crates that don’t close securely are pretty worthless, so you’ll want to make sure that any crate you select has high-quality latches. But beware of crates with exceptionally large latching mechanisms, as some dogs will learn how to open the door themselves. If you have an especially escape-prone pooch, you’ll probably need a crate especially designed for Houdini dogs with double latches or more advanced locking mechanisms.
Selecting wire XXL Dog Crates can be overwhelming at first. Start by selecting the number of doors for your XXL dog crate. Consider where the dog cage will be located and if more that 1-door is needed. Will you ever need to relocate the dog crate to another location and if so, will multiple doors be necessary for your dogs cage? This will significantly decrease the number of dog crates for selection. Next determine style, folding, etc. or consider a puppy crate package.