Thundershirt uses gentle hugging to calm your cat. With its patented design, Thundershirt’s gentle, constant pressure has a dramatic calming effect for most cats if they are anxious, fearful or overexcited. Based on surveys completed by over two thousand customers, over 80% of cats show significant improvement in symptoms when using Thundershirt. Thundershirt is already helping hundreds of thousands of cats around the world and is recommended by thousands of veterinarians and trainers. Thundershirt helps keep animals calm so they are more comfortable in situations that were once frightening.