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Thundershirt Jacket Classic

  • Grey » Large £31.49
  • Grey » Medium £31.49
  • Grey » Small £31.49
  • Grey » X-Large £31.49
  • Grey » X-Small £31.49
  • Grey » XX-Small £32.99

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With its patent-pending design, Thundershirt’s gentle, constant pressure can have a dramatic calming effect for most dogs if they are anxious, fearful or over-excited. Based on surveys completed by over two thousand customers, over 80% of dogs showed significant improvement in symptoms when using Thundershirt. Thundershirt is already helping tens of thousands of dogs around the world, and is recommended by thousands of veterinarians and dog trainers. Please see below for a size guide.

As for WHY Thundershirt’s gentle pressure works to calm a dog, experts such as Dr. Temple Grandin believe that pressure has a calming effect on the nervous system. Using pressure to relieve anxiety has been a common practice for years. For example:

  • Touch dog trainers use pressure to address a wide variety of anxieties.
  • Veterinarians use pressure to relax cattle when they are administering vaccinations.
  • People with autism use pressure to relieve their persistent anxiety.
  • Children with certain behavioral problems use pressure shirts and weighted vests to relax and focus.
  • Parents use swaddling to calm an inconsolable newborn infant.

Until now, there just hasn’t been a well-designed, inexpensive pressure wrap commonly used for dog anxiety. Thundershirt is changing that! Thousands of veterinarians and dog trainers now recommend Thundershirts for their anxiety cases.

Size Dog Weight Chest Size
XXS less than 7 lbs 9" - 13.5"
XS 8-14 lbs 13" - 18"
S 15-25 lbs 16" - 23"
M 26-40 lbs 18" - 26"
L 41-64 lbs 24" - 32"
XL 65-110 lbs 31" - 40"

Thundershirt is an excellent treatment for most types of dog anxiety and fear issues. For many anxieties, we recommend just putting on a Thundershirt and observing the results (No training!). You very well may see significant improvement for noise, crate, travel, barking and others with absolutely no training. For more complicated anxiety cases, we recommend using Thundershirt as part of a behavior modification program.

One thing is for certain, for a very large percentage of dogs, Thundershirt’s gentle, constant pressure has a terrific calming effect. This has obvious benefits for most types of anxiety. But Thundershirt is also a very useful tool for managing excitability or hyperactivity with strangers, on the leash, or in a training environment. Thundershirt’s calming effect helps a dog to focus (or refocus) her energies in a more constructive direction, allowing training to be more effective.

Before putting Thundershirt on your dog for the first time, we recommend offering a small amount of food to your dog using the Thundershirt as a “plate”. Dogs typically become more comfortable and trusting of something that “brings” them food or anything that they associate with food. So this is an easy little trick to quickly create a positive association with Thundershirt for your dog.

Thundershirt has been developed to be very easy to put on. Just lay it over your dog’s back and secure with the chest and torso straps. The fasteners fasteners make Thundershirt very adjustable to many different body shapes.

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:30am - 5:00pm
  • Sat: 9:00am - 1:00pm
  • Email:

All prices include VAT where applicable.

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7th Jun 2017
Pauline Walley
  • VioVet Customer Since: November 2013
  • From: Hertfordshire, United Kingdom

I have a whippet 14 months chest size 25 and half and weighs 17 lbs could you please advise what size thundershirt

  • Website Content Developer

Hi Pauline,

We would advise going for one that fits chest size, so a Medium.

I hope this helps.


7th Jun 2015

My Staffordshire Bull Terrier is nearly 4 years old, she doesn't like fireworks at all, and loud bangs of any description upset her, would a jacket help,this is common with this breed, have you had any feedback from any staffie owners.

  • Non-Executive Director

We do hear of people who say their dog is calmer when using this product, though I am not aware of any reports which have specifically mentioned a Staffie. Some people also say that it does not work at all for their pet. I think that it does help most dogs, but it is not going to be the perfect answer for all. Unfortunately you cannot know if it will work without trying it.