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Thundershirt Jacket Classic

Thundershirt Jacket Classic
Grey » X-Large

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  • Grey » X-Large £31.49
  • Grey » X-Small £31.49
  • Grey » XX-Small £23.50

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£23.50 to £31.49


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 (Collections only)
  • Email: [email protected]

All prices include VAT where applicable.

Delivery Information

How quickly do you deliver?

Under almost all products on our website is an Estimated dispatch time, check this for a delivery prediction specific to the item you are looking to purchase. These badges are updated live based on the stock levels we have and also those of our suppliers - so are usually very accurate, but cannot be guaranteed. In more general terms, we aim to dispatch all orders within 1 working day of receiving payment (and a prescription if required). If we cannot do so within 3 working days we will contact you by email.

What do you charge for delivery?

For UK delivery, we charge the following:

Order Total Weight Delivery
£0-£28.99 Under 2kg £2.99
2kg+ £4.99
£29-£38.99 Under 2kg Free
2kg+ £4.99
£39+ Under 2kg Free
2kg+ Free

Prices quoted are for delivery to all parts of mainland UK except certain Scottish postcodes (where the price is higher for items sent by courier. Delivery of food abroad (including Channel Islands, N. Ireland and other islands around the UK) is charged at a higher price and free delivery is not available. Temperature controlled products, such as Insulin, are also not always subject to the standard and/or free delivery options.

For full information on our delivery charges, including prices on heavy deliveries to Scotland and abroad, see our delivery information page.

We can deliver most items to all around the world, but prices do vary. The majority of light weight orders (less than 1.5kg) can be delivered for a flat rate of £10. For an accurate estimate of the delivery charge, please put the items you require in your basket and use the "Estimate Delivery" system on the shopping basket page (you only need to enter your country and postal/zip code) for a quick quote. For deliveries to the USA you may need to go to the checkout page and enter your full address to get a quote (as some services need your state in order to quote too). For more information on international deliveries, please see our delivery information page.

Delivery of aerosols

Due to restrictions aerosols can't be sent by Royal Mail. We appreciate your understanding.

Delivery of temperature controlled items

Some products, such as insulin and frozen food, need to be delivered in insulated packaging to prevent them from getting too warm (or too cold) during transit from us to you. Purchasing any of these items in your order will result in a £1.99 charge being added to the total to cover the high cost of the insulated packaging materials. You only pay the £1.99 once per order, regardless of how many temperature controlled items you purchase in that order.

How do I cancel or return an order?

Please call us as soon as possible if you need to amend or cancel an order on 01582 842096. If your order has been processed for dispatch we will be unable to cancel or amend the order. You will however be able to return your product for a full refund*.

To return an item, you must contact us by phone or email to arrange this BEFORE posting any product back to us. We will explain the process at this stage for you.

*For full details on returns, see our terms and conditions page.

Reviews (28)

Q & A

Below are some recent questions we've received regarding Thundershirt Jacket Classic, including answers from our team.

11 December 2018 at 7:03pm


Lynne Owens

  • VioVet customer since 2017
  • From: , United Kingdom

What sizes are the thunder shirts .i have a King Charles spaniel

  • Website Content Developer

Hi Lynne,

The size guide can be found on the product page:

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"

Hope this helps.

7 June 2017 at 5:45pm


Pauline Walley

  • VioVet customer since 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.

7 June 2015 at 12:59pm



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.