JoyDaogFleece Dog Hoodie for Medium Dogs Super Warm Doggie Jacket for Cold Winter Dog Coats,Red L

Is this very very warm?

Is the lining gray or brown?

I have a 10 month old male bichonpoo that weighs 11 pounds. When he tinkles he still squats. Will this jacket stay clean and dry on the underside?

My dog weights 80 pounds, what size should I get for her?