Review on 🐾 Tirrinia Large Pet Backpack Carrier for Small Cats & Dogs - Airline-Approved, Two-Sided Entry, Padded Back Support - Ideal for Hiking, Walking, Cycling & Outdoor Travel by Kelly Thomas

The bottom DETACHABLE platform is approximately 12 inches long and 10.5 inches wide (approximately). So if your pet can fit on a sheet of paper (8-1/2 x 11) or slightly larger, you'll have to go. The sides of the backpack are made of fabric and are flexible, allowing your pet to lie a little more, but not too much. Your pet's weight only plays into what you can carry comfortably and for how long. The "lap belt" actually goes around the lower chest (depending on the length of the shoulder straps and measures 42-3/4" when buckled in. I haven't measured the chest strap, but it looks like it has enough room and you won't zip up securely Reinforced padding in the removable base is also removable so the fleece/fabric is washable There is a snap clip on the back for you to attach things like the included water bowl. The top is shielded and fully zippered, the back opening is smaller but still shielded. As for the chemical smell: it's like a new car smell and fades. One day and everything was fine. I have a miniature cat that measures 14" Nose -to-tail base (10" long rolled up) and weighs 2.5 pounds and fits perfectly inside leaving room for a piece of blanket. He has a twin sister and I could both without a blanket accommodate there. It doesn't have any pockets but the compromise is oh holes on the sides and back to peek out of while lying down. I can take my wallet with me and put small bags under the platform if needed as it is high. Before carrying your cat, make sure she is comfortable in a regular carrier; If he throws a tantrum or growls and gets angry, you will need to spend some time teaching him to tolerate this pack. It also helps to trim or cover the nails. I left mine on the floor with the zippers undone and had all the cats test it before attempting to shove anyone in - highly recommend! Use your common sense - only you can tell if your pet is fine in this carrier!