1. Suitable for small dogs. Insulation, water and wind protection for small to medium sized dogs, which means our largest size fits dogs around 32lbs. For accurate measurements, measure your puppy's chest and refer to our size chart. 2. Waterproof and Lightweight - Our puppy jackets keep your dog warm, keep your dog dry and comfortable, protect them from snow, are lightweight, won't get wet from snow or rain, and are very comfortable cute. Or at least, that's what they look like when you look at photos of those adorable dogs in customer reviews. In addition to being nicely insulated and cute, you can also attach a belt to it without needing a seat belt. 3. Painless Zipper Guard - Avoid pet's hair getting caught by zipper. Painful experiences that no pet should go through. The shield on the dog jacket prevents accidental zipping of the dog's fur and skin - when you get the Gooby dog vest, your pup won't have to go through a painful experience. The jacket zipper is located on the back, making it easier to put on and zip it up - effortlessly 4. Bottom opening design - Unlike most dog coats and sweater vests, this one is actually cut so it won't stain the dog vest when nature calls for your dog - so you won't have any potty issues . But, assuming your dog does manage to get himself into some... mess, you'll be relieved to know that you can machine wash and tumble dry the Gooby Dog Vest with ease.