The Thundershirt applies gentle, constant pressure that has a dramatic calming effect for most cats. Great for vet visits, travel anxiety, grooming, general fearfulness and much more. With its patent-pending design, the new Thundershirt for Cats applies gentle, constant pressure to the torso. This pressure has a dramatic calming effect for cats if they are anxious or fearful. Thundershirt has already helped many tens of thousands of dogs around the world and is recommended by thousands of veterinarians and dog trainers. And the early results for cats look just as impressive. Cat owners and veterinarians are amazed by the positive impact a Thundershirt can have with cats.