how does the thundershirt work?

I think it's the same principal that Temple Grandin used to calm down cows and herself (she had autism). It applies light pressure to the chest, stomach, and back of the dog. We ordered it, after noticing that placing a wet and heavy towel on our Bernese Mtn. Dog calmed him down. The Thundershirt though, calms him immediately and doesn't get everything wet!! It's a great buy!! We don't use it everyday....only when he seems under stress (constant panting, destructive behavior, pacing).

how do we figure if this will fit our dog?

they do run a bit small. I bought one of each size because I have multiple dogs. I have two Golden's so I bought the Large for a 70 pound dog and X-Large for a 90 pound dog and they fit great. They should be a little snug but keep in mind that they do run a little smaller. I would say they do not run a whole size smaller though.

Has anyone used it for their dog during a road trip?

I used it for a road trip and my dog was calmer than previous road trips. She tends to get car sick, but with a Dramamine and the Thundershirt she was fine.

The website www.onlynaturalpet.com sites China as the country of origin. Despite where it is made it is a good product that works if used correctly. Put it on your dog when he is calm and happy so he associates the shirt with good feelings (2wks to 1 month). Then when you know a storm, fireworks etc. is going to occur, put it on your dog early and he should show a decline in anxiety. If you only put it on when the dog is already upset, you are associating bad feelings with the shirt and will probably get a negative effect.

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ThunderShirt for Dogs, Small, Heather Gray Classic - Dog Anxiety Relief Calming Vest

Product ID: 2360920

Details

Chest Size
21 Inches
Minimum Weight Recommendation
15 Pounds
Neck Size
17 inches
Occasion
Birthday New
Size
Small

🌀Breathable, lightweight fabric blend

🐕Small size fits dogs up to 21" chest

🧼Machine washable for easy care

317.32 DT

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Description

🐾 Wrap your dog in calm — because stress is so last season!

PATENTED PRESSURE WRAP - Gentle, constant calming hug—no meds needed
SATISFACTION GUARANTEED - 60-day risk-free return for peace of mind
EFFORTLESS COMFORTABLE - Adjustable, breathable, and no training required
VERSATILE STRESS SOLUTION - Perfect for fireworks, storms, travel & vet visits
VET APPROVED ANXIETY RELIEF - Trusted by vets & millions of calm pups worldwide

ThunderShirt Small Heather Gray is a vet-recommended, patented calming vest designed to reduce anxiety in dogs through gentle, constant pressure. Made from a breathable polyester-spandex-rayon blend, it fits dogs with up to a 21-inch chest and is machine washable for convenience. Proven effective in over 85% of cases, it’s ideal for stressful events like thunderstorms, fireworks, and travel, offering a drug-free, easy-to-use solution backed by a 60-day satisfaction guarantee.

Specifications

ASIN	B0029PY7SK
ASIN	B0029PY7SK
Additional Features	Breathable
Age Range Description	All Life Stages
Animal Theme	Dog
Best Sellers Rank	#253 in Pet Supplies ( See Top 100 in Pet Supplies ) #2 in Dog Relaxants
Brand Name	Thundershirt
Breed Recommendation	All Breed Sizes
Chest Size	21 Inches
Closure Type	Classic
Color	Heather Grey
Customer Reviews	4.2 4.2 out of 5 stars (55,756)
Date First Available	May 13, 2009
Department	mens
Dog Breed Size	Small
Fabric Type	Polyester, Spandex, and Rayon Blend
Is Discontinued By Manufacturer	No
Item Display Dimensions	11.81 inches
Item Type Name	ThunderShirt for Dogs
Item Weight	4 ounces
Item model number	HGS-T01
League Name	NBA
Manufacturer	Thundershirt
Manufacturer	Thundershirt
Manufacturer Part Number	HGS-T01
Material Type	Polyester
Minimum Weight Recommendation	15 Pounds
Model Number	HGS-T01
Neck Size	17 inches
Neck Style	Round Neck
Number of Items	1
Occasion	Birthday, New Year, Thanksgiving
Pattern	Solid
Pet Type	Dog
Product Care Instructions	Machine Wash
Product Dimensions	0.45 x 7.65 x 10.35 inches; 4 ounces
Seasons	Autumn-Winter
Size	Small
Style	Classic
Target Species	Dog
Theme	Animals
UPC	854880001158 688209445985
Unit Count	1 Count
Warranty Description	Eligible for return and refund
Water Resistance Level	Not Water Resistant

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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317.32 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews