7 SIZES AVAILABLE: XS, S, M, L, XL, XXL, XXXL dog winter coat fits small medium large dogs. Such as Yorkie, Chihuahua, Maltese, Pomeranian, Maltese, Miniature, Dachshund, Fox Terrier, Jack Russell, Schnauzer, Pug, Boston Terrier, Beagle, French Bulldog, Golden retriever, Labrador, German Shepherd etc. We suggest you measure your pet precisely to ensure the best fit, and if it is between two sizes, please size up to choose the dog jacket. WINDPROOF, WATERPROOF & WARM DOG COAT: All of dog coats outside are made of waterproof & windproof polyester, durable and will provide a perfect protection for your dog during the bad weather. The dog jackets inside are made of double layer fleece lined that will keep your lovely pet warm during the cold winter. dog cold weather coats are perfect for all indoor and outdoor activities. REVERSIBLE & ADJUSTABLE: The dog winter jackets can be double-sided worn, with the magic sticker closures around the neck & belly that can easy to adjust the size to fit