Am I missing the size on these somewhere?
It’s a medium. Down below the description it has the dimensions and if you compare them to the size chart in the pictures you can see it’s a medium.
I bought one for my 13 pound cat a couple weeks ago and he loves it! 
For now anyway, after all he IS A CAT! 
It’s super padded on the bottom and so cushy!
Did I say how much he LOVES it… 
In the description I see a medium then large dimension listing. Where do you see only one? It may be the price difference is actually the size but they only have medium brown and Large gray.
Can’t be sure if the color indicates size as they show a small puppy in a brown one and also in a gray one. Woot needs to clarify this listing or expect to deal with returns.
Hello. It’s the 24" size.