Dog Hat

Hi everyone, my dog constantly has ear infections, so I'm looking for patterns on how to make a dog hat. Maybe someone can help me?
Thanks! Best regards 

I don’t have a dog myself, so I have no experience with how dogs would react to wearing a hat.

Wouldn’t he just keep pulling it down with his paws?

Maybe don’t make it round—start with an oval shape from the top and crochet down to the desired size. Maybe with ties

Thanks for the reply! I knitted a small round hat with ties. She left the hat alone, but it kept slipping off because of the shape of her head. Making it oval is really a great idea. 😊

Looking for a dog hat with neck cover
to knit

Wouldn't it be enough to just knit a sort of tube? Like a tighter loop, and then just slip it on.