Sweater will fit upto 5lbs so a teacup size dog. This House of Barker sweater is perfect for your little Chihuahua dog, with a size of Xsmall. The gray and chunky bobble stripe design adds a stylish touch to your pup's wardrobe. Made from high-quality materials, this sweater is sure to keep your dog warm and comfortable during colder weather. It's a great addition to any pet owner's collection of clothing for their furry friend.