Top off your dog's look with a sassy wig or hat! Dog hats are functional and fashionable. On hot days your dog's head is shaded from the hot sun and protected from glare and harsh rays. A hat for your dog will also protect your dog's nose and eyes from the sunlight, and can be soaked in cool water to keep your dog cooler on long walks in the summer. A dog hat can also ensure that his head is kept warm on cold winter days and nights.