ThunderShirt Classic Anxiety Vest for Dogs, Heather Grey, slide 1 of 1

ThunderShirt Classic Anxiety Vest for Dogs, Heather Grey

  • Price:

    $44.95 FREE 1-3 dayShipping over $49

In stock
cw-icon-heart Created with Sketch. Add to Favorites

Thundershirt uses gentle hugging to calm your dog. With its patented design, Thundershirt’s gentle, constant pressure has a dramatic calming effect for most dogs if they are anxious, fearful or overexcited. Based on surveys completed by over two thousand customers, over 80% of dogs show significant improvement in symptoms when using Thundershirt. Thundershirt is already helping hundreds of thousands of dogs around the world and is recommended by thousands of veterinarians and trainers. Thundershirt helps keep animals calm so they are more comfortable in situations that were once frightening.

Key Benefits
  • 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.

USING FOR EXTENDED PERIODS OF TIME: ThunderShirt is designed to be safe to leave on for extended periods of time when appropriate for the situation or issue. When sized correctly and properly put on with a soothingly snug fit, your dog should be very comfortable. If your dog will be wearing a ThunderShirt for more than one hour at a time, we recommend removing ThunderShirt every one to two hours during the initial periods to check for any signs of irritation points. Irritation points are very rare, but it is best to be cautious. After confirming no irritation points during initial uses for extended periods, we recommend that you still remove the ThunderShirt at least twice a day for thirty minutes. CHEST STRAPS SHOULD BE LOOSE AROUND NECK: Use the �two-finger� collar rule when applying the neck straps (i.e. easily slide two fingers between the neck straps and your dogs neck without pressure). The neck straps are only intended to keep the ThunderShirt in place.

See all items by ThunderShirt

  • Item Number
  • Lifestage
  • Breed Size
    Extra Small & Toy Breeds, Small Breeds, Medium Breeds, Large Breeds, Giant Breeds

To get the most accurate size anxiety vest for your pet, measure the girth of their chest, around the widest part of your dog's torso right behind the front legs, with a cloth tape measure. Pull the cloth tape snug, but not tight. If you don't have a cloth tape measure, you can use a piece of string and measure it with a rigid ruler afterwards. If your dog is in between sizes, we recommend that you choose the larger size.

alt text

SizeChest Circumference Pet Weight Breed Examples
XX-Small 9-13 inches less than 7 lbs Chihuahua, Pomeranian, Yorkshire Terrier
X-Small13-17 inches 8-14 lbs Cairn Terrier, Mini Dachshund, Border Terrier
Small17-21 inches 15-25 lbs Beagle, Dachshund, Pug, Boston Terrier
Medium21-25 inches 26-40 lbs Whippet, Pinscher, Schnauzer
Large25-30 inches 41-64 lbs Basset Hound, Bulldog, Siberian Husky, Small Labrador
X-Large30-37 inches 65-110 lbs Large Labrador, Boxer, Doberman, German Shepard
XX-Large37-50 inches 110 lbs Great Dane, Mastiffs, Irish Wolfhound

Safe, Simple Calming Solution

ThunderShirt features a patented design that applies gentle, constant pressure on your dog's torso. This helps calm him during stressful situations, similar to the way parents swaddle infants to make them feel secure. ThunderShirt helps million's of pets, with a better than 80% success rate.

Safe, Simple Calming Solution
ThunderShirt helps reduce anxiety

Problem Solved

ThunderShirt helps reduce anxiety caused by loud noises like fireworks or—as the name implies—thunder. But that's not all. This versatile solution can help dogs with separation and crate anxiety, and those who get nervous during car or air travel, vet or grooming visits, or when guests visit the house. It can even curb unwanted behaviors like leash pulling, barking, digging and scratching.

Size 'Em Up

ThunderShirt is designed to be easy to put on and easy to adjust for proper fit, even if your dog is already in a state of anxiety. So it only takes a few seconds to make him feel more safe and secure. Be sure to pick the right size for your pup for best results.



For dogs under 7 pounds



For dogs between 8-14 pounds



For dogs between 15-25 pounds



For dogs between 26-40 pounds



For dogs between 41-64 pounds



For dogs between 65-110 pounds



For dogs over 110 pounds

About ThunderWorks

ThunderWorks was founded by a doggy daddy whose panicky pup couldn't stand thunderstorms or fireworks. When all the vet had to offer were risky medications, Founder Phil Blizzard fashioned a people shirt to wrap around his dog, and ThunderShirt was born. Today, ThunderWorks is dedicated to providing simple, effective solutions with a range of products designed for the most common pet problems.

Shop ThunderWorks

About ThunderWorks
Rating: 4.0 of 5 stars 967 Reviews 967 Reviews 4.1 out of 5 Stars

85% Recommend

85% of reviewersrecommend this product

Rating: 4.0 of 5 stars 4.1 / 5

You've Already Reviewed This Item