ThunderShirt Classic Anxiety & Calming Vest for Dogs, Heather Grey, Medium

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At a Glance

  • Calming
  • All Lifestages

$39.99 (-17%) Chewy Price
$47.99 List Price
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FREE 1-3 day delivery
Free 365-day returns

Pay in 4 interest-free payments of $10.00. .

About This Item

Details

  • Patented design applies gentle, constant pressure to calm anxiety, fear, and over-excitement. This gentle hugging produces a dramatic calming effect.
  • Calms your dog 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 jumping, excessive barking, and inappropriate marking.
  • Proven effective in over 80% of dogs.

Instructions

Learn More About ThunderShirt From Our Team of Experts

Looking for more? Shop All Calming Aids

Frequently bought together

Questions & Answers

40 Customer Questions

My pit has anxiety 🙆🏻‍♀️. My question or concern is the Velcro he doesn’t like the sound at all. Has anyone had an issue with the Velcro?

Answer by kim • Jul 04, 2023
try the "polo" thundershirt

My dog has separation anxiety when I’m at work. Will she be able to wear it during a full work day? Are dogs able to lick, bite, or pull on the shirt?

Can you attach a leash?

Answer by Chewy • Dec 22, 2025
A leash can not be attached to the ThunderShirt Classic Anxiety & Calming Vest for Dogs.

How does this work with separation anxiety?

Answer by Shanquisha.G • Aug 28, 2024
The Thunder Shirt uses gentle, constant pressure to calm anxiety, fear, and over-excitement. This gentle hugging produces a dramatic calming effect while slowing the heart back down to a normal rate.
Reviews
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4.2
Rated 4.2 out of 5 stars
2811 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Design

81% Positive

Ease of Use

80% Positive

Effectiveness

78% Positive

Material

80% Positive

1781 Customer Reviews

Rated 5 out of 5 stars
By Kelly on Dec 30, 2025

Thank goodness for this shirt for our little one!

Our Bernadette suffers from periods of intense anxiety and after a few trips to the emergency vets and researching the symptoms with her regular veterinarian, we

Our Bernadette suffers from periods of intense anxiety and after a few trips to the emergency vets and researching the symptoms with her regular veterinarian, we purchased this shirt and it has made such a difference. During these episodes, she pants rapidly, scurries under our feet, climbs above our heads on the couch, recliner and in bed and nothing we do helps to calm her down. This shirt does sort of makes her freeze, but it’s similiar to how she acts when we put a cold weather sweater on her. She lays down generally where we put on the shirt and gives into the calmness. It’s a miracle!! It is science based though, similar to swaddling a human baby. It brings her comfort. We pick her up and cuddle with her and she wears it for about 30-45 min to help ease her fears. We always have it with us on trips to our campground just in case something triggers her.

Rated 5 out of 5 stars
By Jeff on Jan 2, 2026

The outstanding customer service.

We'd bought a Thundershirt for our Aussie, Lego, who is terrified of thunder and fireworks - and it worked pretty well, but after only a few wearings we noticed

We'd bought a Thundershirt for our Aussie, Lego, who is terrified of thunder and fireworks - and it worked pretty well, but after only a few wearings we noticed that the edges of the Velcro strips were pulled loose in a few spots where the stitching had simply missed catching it. Called to see about a return and was offered a quick free replacement, no return necessary! Quick, easy, a pleasure to do business with, and the new one arrived in time for New Year's Eve fireworks. Yay!

Rated 1 out of 5 stars
By Laine on Dec 30, 2025

Unfortunately it didn’t work

My poor boy is TERRIFIED of fireworks. I got a thunder coat for him and it didn’t do anything. He hides in the bathroom, pants, shakes and tries to wedge himself

My poor boy is TERRIFIED of fireworks. I got a thunder coat for him and it didn’t do anything. He hides in the bathroom, pants, shakes and tries to wedge himself between the wall and the toilet, which he doesn’t fit. For the past 2 years, I’ve spent NYE in the bathroom with him. I’ve tried everything too. Calming chews, thunder coats, even massage. My head massager seems to work the best. I wish there was something I could do!! It’s heartbreaking. My girl starts shaking because she sees him shaking. It’s so sad.

Rated 4 out of 5 stars
By Ashley on Dec 8, 2025

Helps

Field golden in her 4th year of life decided to become scared of thunder, she hides, paces, shakes and is generally super stressed to the point where I have to hold

Field golden in her 4th year of life decided to become scared of thunder, she hides, paces, shakes and is generally super stressed to the point where I have to hold a towel over her head to get her to calm down, so I was willing to try the jacket. she definitely is calmer, however I think its the distraction of having it on to begin with thats the help. She still hangs out right next to me but the pacing and panting has stopped, but make sure to put it on them when there's not thunder, she gets a little anxious when she sees it coming out, and fights me a little to get it on, but once its on she's good. Worth a try for anyone looking for help with the anxiety and nervousness with storms.

Rated 2 out of 5 stars
By Ellen on Jan 8, 2026

Relief for travel anxiety

Six year old, Charli, shakes and pants during car trips. T-shirt seemed like a great solution. She willingly wore the shirt, no issues. However, it did not provide

Six year old, Charli, shakes and pants during car trips. T-shirt seemed like a great solution. She willingly wore the shirt, no issues. However, it did not provide any relief. In addition, she struggled to move about and/or lay down. Disappointed that this was not the solution for her.

Rated 3 out of 5 stars
By Judy on Jan 17, 2026

Well made

It is well made but I didn’t see a difference in her response to fireworks. I was hoping the undershirt, her ear muffs, calming chews and prescription would keep

It is well made but I didn’t see a difference in her response to fireworks. I was hoping the undershirt, her ear muffs, calming chews and prescription would keep her calm and it did for awhile but once she heard noise it was all over.

Rated 5 out of 5 stars
By Sydney on Oct 10, 2025

Best thing for nervous pups!!

My 90 lb rescue pit is terrified of loud noises after being rescued from a hurricane when she was a baby. I'm talking sits as close to me as possible, shaking, on

My 90 lb rescue pit is terrified of loud noises after being rescued from a hurricane when she was a baby. I'm talking sits as close to me as possible, shaking, on garbage day because the truck outside is a little loud. Bought this for the 4th of July and I was SHOCKED at how much it calmed her down. Her shakes decreased significantly and she laid down after a few minutes with it on. Now, she gets her jacket every trash day and typically falls asleep within 30 minutes, even when the truck passes by outside! No amount of calming treats have ever helped like this jacket does. I just wish I had found this sooner for her!

Rated 5 out of 5 stars
By Mary on Dec 7, 2025

I have purchased this product twice and my pet does great with this

She was a severely mistreated rescue probably used as a breeding dog She was removed by animal control in Florida for terrible neglect and probably exposed to thunderstorms

She was a severely mistreated rescue probably used as a breeding dog She was removed by animal control in Florida for terrible neglect and probably exposed to thunderstorms routinely. So the thundervest is a lifesaver

Rated 5 out of 5 stars
By Morgan on Oct 15, 2025

Worth it

I have a very high strung anxiety ridden dog, I didnt know she was like this when I got her, but I cant find anything that soothes it and finally I decided to bite

I have a very high strung anxiety ridden dog, I didnt know she was like this when I got her, but I cant find anything that soothes it and finally I decided to bite the bullet and buy the thundershirt for her while it was on sale and it has been a game changer. She doesnt wear it all the time but we put her in it when we are expecting company over or we're going for a drive. The times she gets the most anxious.

Rated 5 out of 5 stars
By Virginia on Jan 1, 2026

anxiety behavior

My GSD had terrible separation anxiety and just anxiety in general. Of all the meds, and supplements, the Thunder shirt made the most difference

My GSD had terrible separation anxiety and just anxiety in general. Of all the meds, and supplements, the Thunder shirt made the most difference