|McIver looking like an olive in a martini glass.|
We got a Large but it has a velcro strap that makes it adjustable. Because it is adustable we can use it for McIver and Calhoun if they ever need it. It has an inner tube, accessible via a zipper, that is inflatable and is protected by a durable rubber cover. It's also washable.
At Petsmart, it cost about $30 but is definitely reusable.
I hope this helps. Have a great day everyone!
Mamma Heartbeat signing off!