The Proselect is far from being portable – lacking collapsibility and being made of steel makes it quite heavy. The crate has four locking detachable casters that allow the crate to be easily moved around the floor to different areas of the house. The Proselect crate does excel at being an indestructible crate at a reasonable price compared to the collapsible & lightweight competitors.
Making your dog crate comfortable and cozy for your dog will go a long way in making them unwilling to escape. Nobody wants to sit on a cold, and hard floor, and the same applies to our dogs! There is a broad variety of doggy beds available online from dog mats to luxury doggy beds. Be sure to check the floor dimensions of your dog crate to make sure that your new dog bed purchase will fit inside. Dog crate pads are dedicated aimed at dog crates, and many of them are chew proof and waterproof for obvious reasons.
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