Explore Pet-Friendly Boothbay

Best of Maine 2021

As voted in Downeast Magazine

Cat Thundershirt

  • The famous dog-calming shirt is now available for cats!
  • Drug-free and easy to use.
  • 80% success rate.
  • Applies gentle, constant pressure around the midsection; akin to wrapping a baby in a snuggly blanket.
  • As seen on Good Morning America with Dr. Marty Becker.
$40.00 $20.00


Handy Sizing Chart:
Small < 9lbs
Medium 9-13lbs
Large >13lbs

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 dogs and cats show significant improvement in symptoms when using ThunderShirt, and is recommended by thousands of veterinarians and trainers.

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 example, Wrapping a baby snuggly in a blanket, or "swaddling", is a very common practice for helping to calm an irritable or upset baby, or to help a baby to fall asleep. Medical professionals today routinely teach swaddling to new parents, and families and friends have been passing down this wisdom for centuries. Some experts believe that swaddling mimics the warmth and pressure babies experience in the womb. But whatever the reason, there is no denying its success!

ThunderShirt is an excellent treatment for many types of cat anxiety and fear issues. For many anxieties, we recommend just putting on a ThunderShirt and observing the results. You very well may see significant improvement for vet visits, travel, grooming, general fearfulness and others with no training. If your cat appears to not want to move in her ThunderShirt (what we term the "Freeze & Flop"), don't worry! Please see our FAQ on the instructions.

Before putting ThunderShirt on your cat for the first time, we recommend offering a small amount of food to your cat using the ThunderShirt as a plate¯. Cats typically become more comfortable and trusting of something that brings¯ them food or anything that they associate with food. So this is an easy little trick to quickly create a positive association with ThunderShirt for your cat.

ThunderShirt has been developed to be very easy to put on. Just lay it over your cat's back and secure with the chest and torso straps. The fasteners make ThunderShirt very adjustable to many different body shapes.