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Best of Maine 2021

As voted in Downeast Magazine

Thundershirt -- XXL Size ONLY

  • Most effective anxiety solution as voted by veterinarians.
  • Thundershirt's patented design applies a gentle, constant pressure that has a dramatic calming effect for over 80% of dogs.
  • No training or medication necessary.
  • Great for storms, travel, separation and many other kinds of anxiety.
  • 100% Money Back Guarantee from ThunderShirt. What do you have to lose?



ThunderShirt uses gentle hugging to calm your dog or cat. With its patented design, ThunderShirt’s gentle, constant pressure has a dramatic calming effect for most dogs and cats if they are anxious, fearful or overexcited. Based on surveys completed by over two thousand customers, over 80% of dogs and cats show significant improvement in symptoms when using ThunderShirt. ThunderShirt is already helping hundreds of thousands of dogs and cats around the world and is recommended by thousands of veterinarians and trainers. How does ThunderShirt work? Experts believe that pressure has a calming effect on the nervous system, possibly by releasing a calming hormone like endorphins. Using pressure to relieve anxiety in people and animals has been a common practice for years.

For many types of anxiety no training is necessary! Just put ThunderShirt onto your dog and you will likely see results with the very first usage. However, for some dogs, it may take two to three usages to see results. For some more serious anxiety cases, such as severe separation anxiety, you should consult a good trainer for how to integrate ThunderShirt into a training program.

For more information on ThunderShirts, Click Here.

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