This is the warmest coat we have found! Waterproof, padded and windproof with under-chest cover. Made in high-tech padded breathable fabric that is soft and dry on the inside yet highly water and cold resistant. The comfortable chest flap keeps your dog warm and dry underneath even in wet grass and the collar helps keep out the driving rain. The coat slips over the head and under the chest and is secured over the back with Velcro fastenings, keeping it snugly in place. To choose the right size measure from the base of the neck to the base of the tail.