Easy Fitting: Simply measure from the top of your dog's neck to your dog's tail to choose the best size. We designed our parkas for easy slide on and off, customizable fit for every dog. Shower-Proof: Quality nylon on the exterior helps to keep rain, mud, and dirt off. The Interior is made of super soft material to keep your dog feel comfortable and rash-free. Warm Insulation: Our parka is lightweight yet well-insulated to keep your dog warm and comfortable at night or in the rain. Full Coverage: Complete protection of the chest and belly. Equipped with a very strong buckle across the collar, chest, and rear legs for optimal fastening.