Do you have a dog that freaks out when thunderstorms come? Does your pup shake, lose bladder control or experience extreme anxiety? Well, then it’s time to consider investing in the Thundershirt.

This shirt is worn by the dog and has been clinically proven to reduce symptoms of canine anxiety by up to 80%.

The Thundershirt wraps around the torso of your pet and applies gentle pressure on their chest. A Velcro strap ensures a snug fit for many different breeds of dogs.

This Thundershirt review will provide you with all the information you need to make an informed decision about whether an anxiety jacket for dogs is right for you.

Thundershirts have been proven to be effective by many veterinarians and dog owners.

The Thundershirt is a great alternative to medications as no side effects have been noted with Thundershirt use. Calming jackets have also been shown to have a long-term effect on calming dogs even after they have stopped using the calming jacket.

thundershirt for dog anxiety

Using a Thundershirt for Anxiety in your Dog

The Thundershirt is a great alternative for dogs that suffer from anxiety. It has shown results after only one day of use, and it’s much faster than supplements because the ingredients are absorbed into your pet’s system very quickly!

The input did not mention any of the product’s effects on animals with mental illnesses, but it is important to let you know. Some of these animals also experience stress or fear in everyday life situations. One example is when they are walking down an aisle at a store and someone comes up from behind them. An anxiety coat will help manage behavior (for the dog) in these kinds of situations.

Many people face the challenge of imagining what will happen if their dog is exposed to something they can’t predict. For instance, when a person thinks about storms or very loud noises like thunder – do you think his pet would be safe in an open yard? The answer may not always work out well for everyone because some breeds are much more susceptible than others!

A dog’s natural instinct is to be social and work together with the pack, but when they feel threatened or anxious their guard goes up. This can lead your pup into a state of panic which produces adrenaline [fight or flight] response: fast heart rate heightens senses while increased blood pressure prepares them for action in case there was danger at hand; also causing shallow breathing patterns so oxygen intake doesn’t drop too much as easily among other things like dry mouth.

What is a Thundershirt?

Thundershirt is a dog anxiety vest that has been clinically proven to relieve the symptoms of stress and anxiety in pets. Calming vest applies gentle pressure around your pet’s torso, not unlike swaddling an infant. This pressure has the effect of calming them down and reducing their overall stress response.

Thundershirt’s calming effect has been tested and proven effective on many different breeds like low separation anxiety breeds and high separation anxiety breeds of dogs, making it a great solution for pets that have issues with thunder or fireworks. Calming coats continue to be the “gold standard” of dog anxiety solutions.

The Thundershirt is a lightweight, breathable fabric that is machine washable on a regular warm wash. You will notice that it has an element of stretch and fits reasonably tightly so that your dog feels the benefits of the wrap without feeling restricted. It looks like a fitted dog vest/coat.

Is there scientific proof that the Thundershirt works?

Yes, there is. Dr. Temple Grandin is a renowned expert on autism and animal behavior. Her research shows that using a Thundershirt helps with anxiety levels in dogs.

Below are two documents from Dr. Grandin on the subject of the Thundershirt for dogs:

Does A Thunder Jacket Help Stop Your Dog From Barking?

Simple answer: Yes it does.

The Calming dog jacket is more than just a relaxed feeling for your pooch, it can also stop certain behaviors in dogs. For example- a thundershirt is an anxiety vest that helps to calm down excitable or anxious dogs.

The thundershirt dog calming aid has been recommended by veterinarians and canine behaviorists to help dogs cope with thunderstorms, fireworks, and other anxiety-causing situations. It can also help stop your dog from barking or even get them to stop chewing through the furniture!

The thundershirt for dogs is a great alternative to using medication which can leave your pet feeling groggy and lethargic. The calming dog anxiety jacket is also a good alternative to using sprays for stress relief.

On top of thundershirts calming abilities, it has recently added the thundershirt for dogs with separation anxiety to their product line. This jacket calms down your anxious pooch while you’re at work or just out running errands.

It’s important to remember that thundershirt products are designed to be an aid, not a magic solution for anxiety in dogs.

Also, Read This: 11 Things You Didn’t Know Could Trigger Dog Anxiety

What to Look About Before Purchasing a Thunder Vest


When you start looking for thunder shirts, remember jacket sizes do run a little small. Try to measure your dog before purchasing the thundershirt as it fits underneath their normal clothing and can be harder to put on if your dog is too small or too big.


It’s important to consider what type of calming jacket would best suit your dog. Some jackets are designed for thunderstorms anxiety and fireworks anxiety while others help with anxiety during traveling or separation issues.


The dog anxiety vest works using gentle, constant pressure. If the jacket is too tight for your pooch, it may not work as well and could be counterproductive to all of the thundershirt’s efforts.

Best Thundershirts for Dog With Anxiety

Best Dog Anxiety Vest Overall – Sport Thundershirt

thundershirt sport for dog anxiety

The Thundershirt Sport is a shirt that can keep your dog from pulling. It is made of a material that doesn’t have any metal so your dog’s collar won’t set it off and it comes in many colors to choose from.

Machine washable and made out of 88% cotton and 12% spandex. Comes in five sizes, from extra small to extra large. If you get the wrong size, it’s okay because there is a money-back guarantee if the jacket does not fit your dog.

Product Features:

  • Machine washable
  • Comes in multiple colors
  • Does not have any metal parts so the vest doesn’t set off the bark collar
  • Money-back guarantee if the thundershirt doesn’t fit their sizing chart.


  • One of the most popular thunder shirts due to its effectiveness.
  • Doesn’t have any metal parts so the thundershirt doesn’t set off other equipment.


  • Does not have a lifetime warranty.

Best Budget Dog Anxiety Vest- AKC Anti Anxiety Calming Coat

akc anti anxiety calming coat

The AKC anti-anxiety vest has the same features as the Sport thundershirt but also comes with a lifetime warranty. This is available in seven different sizes and comes in six colors, so it will fit your pooch!

The AKC anti-anxiety calming vest is designed to help dogs not be scared. It helps the dog not pull on the leash when they are wearing a thunder jacket.

The AKC anti-anxiety vest also offers a money-back guarantee so if the jacket doesn’t fit you can always get your money back!


  • Machine washable
  • Durable fabric that resists collecting hair


  • Lifetime warranty.
  • Effective for dogs with anxiety.
  • Best for medium and small breeds


  • Does not have as many color options
  • Not for large breeds

Best Anxiety Coat for Small Breeds- Classic Dog Anxiety Jacket

classic dog anxiety jacket

Classic Thundershirt dog anxiety jacket is the best model, it has been designed to be user-friendly. It has boning in the front that keeps it from losing its shape. The shirt also comes in six different colors so it should have a color that fits your pet!

Product Features:

  • Machine-washable and air-dryable
  • Come in many colors.
  • It has a bone to keep it from losing its shape.
  • Money-back guarantee


  • Lifetime warranty.
  • Comes in multiple colors
  • Best for small and medium-size breeds


  • Does not have metal parts, so the bark collar does not go off.

Best Anxiety Calming Jacket for Big Breeds – Polo Dog Anxiety Vest

polo dog anxiety vest

The Polo thundershirt is designed for large and medium-sized dogs with anxiety or fear issues. It’s very easy to use and has a strong Velcro strip. This thundershirt also comes in six different colors so you can get the one that your dog likes!

Polo thunder shirts have been proven to be more effective than putting medication on your dog’s anxiety.


  • Comes in six different colors and sizing charts.
  • Velcro thundershirt for ease of use on their sizing chart.
  • Money-back guarantee.
  • Designed for large and medium dogs


  • Affordable, effective, easy-to-use solutions
  • Great for rescue dogs with anxiety
  • Effectively eases anxieties during fireworks, thunder, separation, travel, vet visits
  • Best for Big Dog Breeds


  • Not so effective for small breeds

The Best Multifunctional Anxiety Jacket For Dogs – CozyVest 3-in-1 Anxiety Vest

cozyvest 3 in 1 anxiety vest

The CozyVest is the thinnest model of a Thunder Jacket. There are seven different sizes and five fasteners on the front to make it stay on better. The CozyVests come in five different colors.

CozyVest has relaxing music and smells like lavender and chamomile. It helps calm anxiety, fear, and over-excitement.

A dog anxiety vest is used for calming dogs. It helps them feel better if they are anxious, afraid, or excited. The CozyVest dog anxiety vest is the best type of pressure wrap available to calm your pup. You can adjust it to just the right amount of pressure to calm them down.


  • No training is required.
  • Comfortable for all sizes of breeds.
  • with relaxing music and lavender/chamomile scents
  • Machine washable.
  • Soft, breathable fabric.
  • Material 70% Cotton + 30% Nylon


  • Thinnest and effective
  • Adjustable for comfort.
  • Soft & adjustable pressure points to fit your dog sizing chart.
  • Money-back guarantee.
  • Dog Anxiety Vest With Relaxing Music


  • No lifetime warranty.
  • Only for medium and large breeds

What anxiety issues will the Thundershirt help with?

The Thundershirt is a great product for any dog that has anxiety. It provides your pup with calming pressure on their chest, which can be soothing to them during times of high stress!

Also Helpful: Separation Anxiety in Dogs: What You Need to Know

Typically, the below list are some of the more common uses:

  • Fear of loud noises – thunderstorms, gunfire, fireworks, etc.
  • During travel
  • Dog reactivity – to other dogs and/or people
  • Dogs with low impulse control that become over-excited quickly
  • Separation anxiety
  • Rescue dogs in a new environment
  • Fear of new things
  • General nervousness

How do I fit the Thundershirt?

The Thundershirt should be a snug fit. Its simple design makes it easy for you and your dog! You put the shirt on, fasten at the front with Velcro closures then wrap the middle around the torso which also has two other straps that secure together using this same type of material (velcro).

The thunder shirt provides comfort during emotional moments by calming anxious feelings in both humans AND canines who have been trained to wear them under certain conditions

Some helpful tips on how to properly fit your thundershirt:

  • When measuring the chest, you don’t want it to be too tight.
  • Should be as snug as two (2) fingers will allow between the dog’s body and their skin. It shouldn’t pull at hairs or feel like a tourniquet.
  • Do not allow your dog to wear the thunder jacket for more than 12 hours at a time.
  • It is recommended that you take an anxiety shirt off your dog for an hour before bedtime so they can relax and sleep naturally.

Thundershirt Size Chart

XXS9″-13″< 8 lbs
XS13″-17″8-14 lbs
S17″-21″15-25 lbs
M21″-25″26-40 lbs
L25″-30″41-64 lbs
XL30″-37″65-109 lbs
XXL37″-50″110 lbs +

We suggest doing a trial run or two with the Thundershirt before you need to use it. Let your dog feel comfortable and start to like wearing it.

Why use a Thundershirt?

The Thundershirt is an innovative garment that helps dogs with anxiety. It’s a safe, positive alternative to other remedies or gadgets recommended by vets for pets suffering from fear and panic attacks like fireworks displays in shelters! Most owners find their furry companions enjoy wearing the shirt as well – it really seems like something you can’t go wrong on if your pooch needs some extra help calming down around strangers/strangers approaching him during public places (like crowded streets).

With an 80% success rate, this is higher than most alternatives for dog anxiety, so there is a greater chance of this option working for your dog.

The Thundershirt works for a wide range of anxiety issues. It works fast and there are no medications needed. Even with natural ingredients, some dogs can have an adverse reaction to supplements.

It has proven to be durable and it’s machine washable. Replacement costs are low, with no ongoing expenses other than when your shirt wears out-which will happen considerably faster than you think!

You may have been considering calling in a dog trainer to help your dog with his anxiety issues. This can be costly, as it will require more than one session to help your dog to learn coping strategies for his anxiety. Whilst we endorse the use of positive training for your dog, we would recommend trying it first to see how your dog responds, possibly saving you the cost of trainer visits.

It won’t take long for you to see how the Thunder jacket works for your dog. Give it a few days and you may see some positive changes in his normal response to anxiety.

Overall, our review of the thundershirt was an outstanding thumbs up. It is a quality product at a low price and it produces the results. Please let us know of your own success with the Thundershirt.


Q) How does the thundershirt work?

A) The Thundershirt for dogs uses gentle, constant pressure to calm pets that are anxious or over-excited. This form of swaddling has been proven to have a remarkable calming effect for those animals suffering from anxiety issues. It’s even been found helpful with thunder and other noise phobias during storms, anxiety around strangers and strangers approaching them, stress with travel or visits to the vet, during fireworks or thunderstorms, separation anxiety, barking issues, and more.

Q) Are thunder shirts safe?

A) Yes – It is incredibly safe. It will not cause your dog to have an adverse reaction to thunder jacket for dogs because it does not contain any drugs or herbal supplements.

Q) Do thunder shirts actually work?

A: Yes – It has been proven to reduce anxiety and fear issues for many types of canines. 80% of customers report a significant decrease in problem behaviors.

Q) Is a thundershirt a shirt or a jacket?

A: Thundershirt for dogs is both! It’s form-fitting, like a jacket, and has sleeves. Thundershirts work very well on most animals with anxiety issues, however, there are some breeds that may not do so well with thundershirt for dogs, so you may want to consult with your veterinarian if thundershirt can work for your dog.

Q) How do thunder shirts work on small dogs?

A: Calming jacket for dogs is suitable for both large and small breeds, but it will be more effective on larger canines. Smaller animals need less direct pressure because their weight isn’t as much in comparison to their size.

Q) How do thunder shirts work for grooming?

A: It has been reported to greatly reduce anxiety and fear during grooming sessions for many dogs. It has also been reported to help pets keep calm during twice-daily brushing, nail clipping, ear cleaning, and more.

Q) Do I need a prescription from my veterinarian?

A: No, you do not need a prescription from your veterinarian to use a thundershirt on your pet. Thunder vest that can help to calm your pet without the need for medication.

Q) Does the thunder shirt stop barking?

A: No, thunder shirt not for to stop barking. It is for anxiety and fear issues. It will successfully stop behaviors such as excessive barking, running away, and more when it comes to anxiety-related problems.

Q) How long do I leave a Thundershirt on my dog?

A: The Thunder jacket is a lightweight, breathable fabric so your dog does not overheat. Your dog can wear it for long periods but we do suggest checking for any signs of rubbing or irritation if it is on for two hours or more.

Ideally, it is best suited for wearing when a situation arises that normally causes him anxiety, for example, when there are thunderstorms or fireworks.

Q) Can I leave the thunder shirt on my dog all the time?

A: It is not a good idea to leave a thundershirt on your dog all the time. It has been designed to be lightweight so that your dog can wear it while sleeping or during times of anxiety without being bothered by the calming vest. If you have any questions about the thundershirt, always talk to a veterinarian.

Q) How to wash a thunder shirt?

A: Never put a thunder shirt in the dryer. We recommend hand washing it with a gentle cycle.

Q) Can a thunder shirt hurt a dog?

A:  Thunder vests for dogs can be harmful. Check the size guide before you buy. The vest is designed to put on a dog, but it can have problems with sizing. If this happens, contact the company right away.

Q) When should I put a thunder shirt on my dog?

A: Thundershirt is for storms and fireworks. It can help your dog during vet visits, grooming sessions, and more. It can also reduce barking when walking on a leash by giving them a shaking jacket.

Q) Does a thunder shirt help with separation anxiety?

A:  Thundershirt can help dogs feel less anxious when they are left alone. It is not meant for separation anxiety, but it can be helpful with separation anxiety. There has been proof that it helps pets calm down with the use of a thunder jacket during moments where your pet is stressed. You do not need to worry about anything bad.

Q) How tight should my dog’s Thundershirt be?

A: Thundershirt is not a one-size-fits-all, but most dogs fit in the adjustable straps. It should fit tight enough that it does not move when they go outside, but not too tight that it causes problems.

Q) Can you leave a thundershirt on all night?

A: It is for short-term use. It can be worn at night or during times of anxiety, but it must be taken off at other times.

Q) How long does it take for a thundershirt to work?

A: When a dog has an anxiety problem, it might help. It takes time for it to work, but eventually, the dog will feel better. It should not be used all the time. Dogs have been known to stop being anxious after a few days of wearing the thunder jacket.

Q) Will a thundershirt keep a dog warm?

A:  Thundershirt is made from lightweight, breathable fabric. It is designed to keep your dog comfortable in most weather conditions.

Q) Will a ThunderShirt help with aggression?

A: thunder shirt is not for aggression, but it can help with anxiety and fear problems. It does not fix these problems overnight. It can be a good start to treating your dog’s problem as an anxiety coat helps the pet relax enough that they can think more clearly about what they need to do next.

Q) Will a ThunderShirt help with aggression?

A:  It is not just for aggression. It can also help with anxiety and fear problems. You must be patient because it will take some time to fix these problems. But it can be a good start to treating your dog’s problem by helping him relax so he can think more clearly about what he needs to do next.

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