Zack & Zoey Contrasting Polka Dots Sundress - Size Large A cute and breezy springtime look in stylish black and white Sleeveless cotton dress is lightweight and comfortable Tulle underlay adds shape and style Size Large fits dogs that measure 16-20 inches from the base of the neck to the base of the tail - Neck: 16 to 20 inches - Chest: 22 to 26 inches PLEASE MEASURE YOUR DOG BEFORE YOU BUY. Dog garments come in 8 different sizes