ThunderShirt Anxiety Vest for Cats, Heather Grey

By ThunderShirt
Rated 3.7178 out of 5 stars


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$19.98 (-56%)Chewy Price
$44.95Chewy Price
In Stock
FREE 1-3 day delivery on first-time orders over $25

About This Item


  • Patented design applies gentle, constant pressure to calm anxiety, fear, and over-excitement. This gentle hugging produces a dramatic calming effect.
  • Calms your cat during fireworks, thunder, separation, travel, vet visits, grooming, and much more with no training and no medication.
  • Comfortable and easy on/off. Made of durable, breathable, soft fabric that is washable.
  • Recommended by trainers and veterinarians to relieve stress-related behaviors such as scratching, excessive meowing, and inappropriate marking.
  • Proven effective in over 80% of cats.

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Play Video: Learn More About ThunderShirt From Our Team of Experts
Learn More About ThunderShirt From Our Team of Experts

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Closure TypeVelcroSlip On, Buckle, N/A
Health FeatureCalmingCalmingCalmingCalmingCalming
Top IngredientsFeline Pheromone Complex (FPhC) 2%, Isoparaffinic hydrocarbon 48 mLPheromones 1%Inert Ingredients 99%.Pheromone
Breed SizeAll Breeds

Questions & Answers

22 Customer Questions

Does this work well for urine marking?
Answer by ChewyNov 09, 2017
ThunderShirt Anxiety & Calming Solution for Cats is recommended by trainers and veterinarians to relieve stress-related behaviors such as scratching, excessive meowing, and inappropriate marking.

My cat is about 12 pounds with very long hair which makes her a little bigger. Is is better to get the large to make sure it fits, or the medium because it should fit tightly?
Answer by ChewyNov 16, 2017
The Thundershirt is designed to be tight, almost like an embracing hug.

Foes this short reusable and washable?? I'm about to leave her with my sister for a few months then bring her with me to another country. How often should my cat wear the shirt while she stays with my sister?? Thank you
Answer by ChewyOct 07, 2018
This shirt is reusable and washable, and should not be worn for more than 5 hours at a time. Using it for longer may cause the jacket to lose its effect and the cat could become desensitized to the jacket.

Is good when doing the nail clips in my cat?
Answer by ChewyJun 01, 2019
Thundershirt’s gentle, constant pressure has a dramatic calming effect for most cats if they are anxious, fearful or overexcited during grooming.

ReviewsWrite a Review

Rated 3.7178 out of 5 stars
241 Ratings
Would recommend to a friend

239 Customer Reviews

Rated 5 out of 5 stars
By Lena on Nov 27, 2023

Miracle worker!

This has worked miracles! My poor cat has such anxiety he cried for hours at a time and was only consoled if I was touching him. He robbed me of sleep, and I was worried I would get noise complaints from the neighbors. After putting this on he has become much more calm, quiet, playful, and he seems to actually like wearing it. I’m buying two more so we can wash and change them out. Here you can see the goodest boy in his happy shirt.

Rated 5 out of 5 stars
By Maria on Dec 2, 2023


Ferrari tried this on and he just laid down on the floor in the vest. He needs this vest because he is a most terrible patient at the vet’s office. I prefer this vest as an alternative to meds because I’m afraid he’ll be more hostile if he is disoriented from medication. So glad to find that Chewy Carrie’s this item for anxious cats.

Rated 5 out of 5 stars
By Suzanne on Dec 4, 2023

My cat not happy

My cat had a bad experience at the vet office and now goes into extreme distress. I had hoped the jacket would help. It did stop the rapid breathing but put him into depression. After 24 hours I took it off. Maybe a 2nd try will be better

Rated 3 out of 5 stars
By Jane on Aug 15, 2023


I ordered a large because I have a Maine coon. It fit around his chest, but the front band was much too wide and interfered with his walking. There was no way to adjust it. He has very long legs and body, but not a deep front chest. It was completely useless because it disturbed him to be on. I have successfully put a harness on him for going outside. I had a "comfort shirt" from another company that I had bought for my Sheltie and that was a little better, but not great. The fabric and construction on the ThunderShirt seems too stiff. The other one I have is a softer knit and more accommodating.

Rated 4 out of 5 stars