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Hard-Sided Cat Carrier (Amazon)

I’ve tried so many cat carriers and this is the one I will recommend every time.  It comes completely apart so that it’s easy to help your cat learn that it’s a safe space at home.  Then, when you’re at the vet, the top half pops off very easily with four side-clips.  Has both top-loading and front-entrance options.  Having a hard side also feels safer and secure for cats who don’t like soft-sided carriers with walls that move while they’re inside.