First and foremost, a quality dog crate must be easy to clean and sturdy enough to withstand any mishap. In this respect, you must keep an eye on the material the crate is made of. Most of them are made of poly-blends which can provide optimal protection in case of an accident while being light enough to be carried easily. The size of the dog crates carriers that caught your eye is also an essential factor in the selection process. They should be large enough so your dog has enough room to turn around at will but not so large that they cannot provide optimal protection in the event of an accident.