Review on 🐱 Expandable Cat Backpack Carrier – Petsfit | Ventilated Dog Backpacks with Fleece Mat | Portable Pet Travel Backpack for Hiking & Camping | Holds Pets Up to 15 lbs by Leslie Ojoh

This is quite an interesting design but it fits my very large Maine Coon cat very well. I had trouble transporting him and making sure he was comfortable and not claustrophobic. Note that when fully unfolded it won't fit under an airplane seat in any way, but it does fit in a regular passenger seat, so you'll end up paying for the extra seat when it's fully unfolded. Otherwise it is very well made and well designed. I recommend it if you're traveling with a large pet, my cat felt completely relaxed and comfortable, I find it's about 3 times the size of a normal cat carrier when fully open, despite being used as a compact carrier can . like a convertible. This is the biggest airline I can rig that still serves my travel needs.