We recently got a little Min Pin/Chihuahua, they said she was about 14 pounds. We also recently moved to Kansas, which can have really cold winters. We're from Florida and have hardly experienced snow, so I didn't really think about a jacket for the dog. She seems to get cold even when we have the house at 77 degrees, so this is a good reminder. My sister has a Maltese and she likes to dress him in pink clothes all the time. He even has a ponytail with a pink hair tie. He likes walking around in snow, though. The only time the little princess will actually pee in the grass is when it's covered in snow... he's also got really long hair, so I guess that acts as his jacket. Our dog has short hair, maybe we'll get her one once summer is over.