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.

I have a shiba inu that is about 25-30 pounds what size should i get?

The most important measurement is the girth or chest size. You want to make sure you get a good snug fit. A chest size of 16"-23" is a small (15-25lbs) and 18"26" is a medium (20-50lbs). Go with the smaller size to ensure a snug fit. Hope this helps!

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ThunderShirt for Dogs, Dog Calming Jacket, Thunder Shirt Large, Anxiety Coats for Dogs, Instant Natural Relief for Storms, Fireworks & Separation, Calming Vest, 5 Sizes, Grey

ThunderShirt for Dogs, Dog Calming Jacket, Thunder Shirt Large, Anxiety Coats for Dogs, Instant Natural Relief for Storms, Fireworks & Separation, Calming Vest, 5 Sizes, Grey

Product ID: 48098484

Details

Chest size
30 Inches
Minimum weight recommendation
18.14 kg
Neck size
11.5 inches
Occasion
Birthday New
Size
L

🧥5 sizes for perfect fit

🧼machine washable for easy care

🌬️breathable, lightweight fabric

Description

🐾 Wrap your dog in calm — because peace of mind is the new luxury.

EFFORTLESS USE - Simple 3-step wrap-on design makes calming your dog quick and hassle-free.
TAILORED COMFORT - Available in 5 sizes with soft, breathable fabric designed for all-day wear.
BUILT FOR REAL LIFE - Durable, machine-washable, and lightweight—perfect for busy dog parents on the go.
CALM IN EVERY STORM - Gentle, constant pressure instantly soothes anxiety during fireworks, storms, and travel.
VET APPROVED RELIEF - Recommended by veterinarians and behaviorists as a natural, drug-free calming solution.

ThunderShirt is a veterinary-recommended calming jacket designed to reduce anxiety in dogs through gentle, constant pressure. Available in 5 sizes and made from breathable, lightweight fabric, it offers all-day comfort during stressful events like storms, fireworks, and separation. Easy to use and machine washable, it’s the trusted choice of millions of dog owners seeking natural, effective relief for their furry companions.

Specifications

ASIN	B0028QK6EY
Age Range Description	Adult
Animal Theme	Dog
Best Sellers Rank	10,640 in Pet Supplies ( See Top 100 in Pet Supplies ) 1 in Anxiety Coats for Dogs
Brand Name	Thundershirt
Breed Recommendation	All Breed Sizes
Chest Size	30 Inches
Chest size	30 Inches
Closure Type	Pull On
Colour	Grey
Country Of Origin	China
Customer Reviews	4.2 out of 5 stars 44,142 Reviews
Dog Breed Size	Large
Fabric Type	10% Spandex, 35% Rayon, 55% Polyester
Global Trade Identification Number	00854880001172, 00854880001837
Included Components	HGL-T01
Item Display Dimensions	37 centimetres
Item Type Name	ThunderShirt Dog Anxiety Jacket, Heather Gray, Large
Item Weight	0.01 Ounces
League Name	NBA
Manufacturer	Thundershirt
Manufacturer Part Number	HGL-T01
Material Type	soft fabric
Minimum Weight Recommendation	18.14 kg
Minimum weight recommendation	18.14 kg
Model Number	HGL-T01
Neck Size	11.5 inches
Neck Style	Round Neck
Neck size	11.5 inches
Number of Items	1
Occasion	Birthday, Fireworks, Holiday, New Year, Thanksgiving, Travelling
Pattern	Solid
Pet Type	Dog
Product Care Instructions	Machine Wash Cold
Seasons	Autumn-Winter
Size	L
Special Features	Easy to Clean, Lightweight, Veterinary Approved
Style	Relaxation Wear
Target Species	Dog
Theme	Casual
UPC	054880001176 854880001837 854880001172
Unit Count	22.0 count
Water Resistance Level	Not Water Resistant

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