Katziela 4 Wheeled Pet Carrier Backpack for Small Dogs & Cats - Airline Approved Soft-Sided Rolling Travel Bag with Removable Wheels, Mesh Ventilation & Storage Pockets (Black/Red) - Perfect for Air Travel, Hiking, Camping & Outdoor Adventures

These work underseat on Southwest. And the attendant actually said we could put both dogs in one bag, they weigh 13lbs together. One is 5lb the other 6lbs. But I wanted them to be extra comfortable for the nearly 4 hour flight so we paid the 125$ for each. The wheels pop on quick. I read someone’s review that said if it won’t clamp in then twist it around a little (basically try a different angle) that really works!These have little snaps so you can buckle in the individual zippers so no one can escape, this is brilliant! It’s true that the wheel brace comes off easily. I’d definitely take it off before you go down the ramp though. My dogs sometimes get into their bags on their own accord and take naps in them.You get three nice sized pockets. Im able to fit leashes, treats, wipes and harnesses. I like that you can lay it down so they can nap, my dogs are so small they can nap either way. There is lots of ventilation.Only thing I wish was different is I prefer mesh that is darker or more camouflaged. Everyone can tell you have a dog and they make comments or try to talk to your dog. One of my dogs doesn’t care for people talking to them and I personally don’t want people knowing I have a dog with me. It’s a conversation starter and I dislike small talk. When my carriers don’t scream “I have a dog” I’ve gone many many flights without the person next to me knowing I have a dog and they are utterly surprised if I reveal it and that’s how I like to travel, more incognito mesh pls. I’d totally purchase those. And the huge logo patch could go. I’d prefer to put my dogs name there. The brands name is a bit long and not necessarily catchy. I’d pay extra to have my dogs name embroidered in that spot. And maybe wouldn’t mind if the brand name was on the arm straps instead.