Thundershirt’s patent-pending design is a pressure wrap that applies a gentle, constant pressure on a dog’s torso. From real world experience, we know with certainty that Thundershirt DOES WORK. That is why we are able to offer a money-back guarantee. A survey of Thundershirt users shows that over 85% of dogs show significant improvement in anxiety symptoms when using Thundershirt.

As for WHY Thundershirt's gentle pressure works to calm a dog…no one knows for sure. There are theories, but no scientific studies to prove them. According to some experts such as Dr. Temple Grandin, pressure has a calming effect on the nervous system. Using pressure to relieve anxiety has been a common practice for years. For example:
• TTouch dog trainers use pressure to address a wide variety of anxieties.
• Veterinarians use pressure to relax cattle when they are administering vaccinations.
• People with Autism use pressure to relieve their persistent anxiety.

Until now, there just hasn’t been a well-designed, inexpensive pressure wrap commonly used for canine anxiety. Thundershirt is changing that!

Thundershirt products are not to be offered for sale on any internet auction website, including but not limited to eBay, and any third-party website fulfillment such as Fulfilled by Amazon.com. Thank you for your understanding.

If you would like to see our products in action, take a look at the Thundershirt YouTube channel.