ThunderShirt Dog Thunderstorm Jacket & Anxiety Aid


There’s no better way to calm down your dog during storms, fireworks, separation anxiety, crating, traveling, and other dire situations than a Thundershirt for dogs. 

The Thundershirt is a comfy pressure wrap. By providing low, but constant, pressure around the dog's torso your pet will begin to feel relief from the anxiety troubling them just seconds earlier. 

The best part about this anxiety jacket for dogs is you don’t have to mess around with medication. Just put the Thundershirt on your pup and you’ll see the difference. 

Here’s what you can expect from using the Thundershirt for dogs:

  • 85% of dogs show significant improvement of at least one anxiety symptom while wearing the Thundershirt
  • Easy to use, drug-free, and safe for your anxious, fearful, or hyperactive dog
  • Recommended by thousands of trainers and veterinary professionals
  • Less anxiety from loud noises like thunder, fireworks, or vehicles
  • Less fear of strangers or new places
  • Better crate comfort
  • Better traveling experience
  • Less hyperactivity or over-excitability
  • Less general anxiety or nervousness
  • Less reactivity while on the leash

The material on the Thundershirt for dogs is 100% washable and it feels good on your dog too. It’s soft and stretchy to wrap your dog comfortably, with velcro adjustments. 

While we don’t have a full understanding of why it works, the thunder jacket for dogs is trusted by certified dog trainers and veterinarians worldwide. Experts such as Temple Grandin suggest pressure has a calming effect on the nervous system.

With most dogs, you will see an improvement in anxiety symptoms the first time they wear the Thundershirt. Some, however, may need to wear it two or three times. Read the instruction sheet here.

Use our convenient sizing chart to understand exactly which Thundershirt will work best for your pup. You can compare the weight of your pup to the size of their chest.


Size Chest Size
(measure around the barrel of your dog's chest,
behind his front legs at its largest point)
XXS 9" - 13" < 7 lbs
XS 13" - 17" 8-14 lbs
S 17" - 21" 15-25 lbs
M 21" - 25" 26-40 lbs
L 25" - 30" 41-64 lbs
XL 30" - 37" 65-110 lbs

"We've been using Thundershirt at my clinic now, and the feedback from our clients is very positive. Thundershirt is a good alternative solution to try versus medications. And it will definitely 'Do no harm’." ~ Dr. Donald Heagren, DVM.

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