The Chug is a Chihuahua and Pug mix, so there's no breed standard and no two look quite alike. Most weigh 10 to 20 pounds and have a short coat that sheds, with ears that stand up or fold and a face that can be flat like a Pug's or longer like a Chihuahua's. Muzzle length affects breathing, so it's worth noticing when you meet a dog.
In San Diego, a Chug's compact size fits the city's condos, bungalows and canyon-edge streets. Expect a devoted, talkative companion that wants to be near you, needs brushing, fold cleaning and dental care, and does better with gentle exercise than strenuous runs. Chugs often live 10 to 15 years, so think about the long run.