Size - For a correct fit, you need to measure your dog's body length and chest circumference (make sure your dog is 4 feet tall when standing, lying or sitting will affect the measurement results), then compare with the size chart provided. Due to manual measurement, it is recommended to add 1-2 inches of space. .Removable Tail Protector: The same waterproof material as the raincoat, solves the problem of the tail always getting wet, and can also be removed and used as needed. .Animal Role Play Style - Fun and cute animal style, let you stand out when walking in rainy days. .Ultra-light waterproof material - High-quality waterproof material with waterproof coating, so that your pet can stay comfortable and dry even in the worst weather conditions. The smallest size (3XL) weighs only 0.24 pounds and will not burden the dog. Free Visibility - The dog raincoat is designed with a clear and transparent visor to block wind, rain and snow, but will not block the pet's vision, making it convenient to go out for a walk.