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How To Measure Your Dog For Thundershirt

Thundershirt is designed to be very adjustable to fit most any sized dog...from the 3 lb Chihuahuas to 100 lb Goldens! The best measurement to use for selecting the correct size is the chest size. See the video and picture below on how to measure chest size.  If chest size is not readily available, your dog's weight may be used as a guideline.




Here's the Thundershirt Sizing Chart

Remember, the most important measurement is around the chest, as shown below.  The second most important factor is the weight. 

Thunder Shirt Measurement Chart


** Please Note:  If your dog is in between sizes, we always recommend going with the larger size.  There is quite a bit of velcro so it's very adaptable.    The chest size is more important than the weight. **

Size Chest Size Weight
Thundershirt XXS 9" - 13.5" < 7 lbs
Thundershirt XS 13" - 18" 8-14 lbs
Thundershirt Small 16" - 23" 15-25 lbs
Thundershirt Medium 18" - 26" 26-40 lbs
Thundershirt Large 24" - 32" 41-64 lbs
Thundershirt XL 31" - 40" 65-110 lbs
Thundershirt XXL 38" - 50" Over 100 lbs

 XXL for dogs over 100 LBS is available by special order.  Please contact us for more information.

Ready to order?  Now that you know your dog's size, you can Order Thundershirt With Free Shipping Here!

Free Shipping:

We are happy to offer free shipping anywhere in the 48 contiguous United States on all outgoing orders.  Returned items will be charged the original shipping fee.  Please review our full shipping and returns policy.   Feel free to contact us for a shipping estimate anywhere outside of this area.

 * Free Shipping offer extends to all outgoing Thunder Shirt orders.  Any merchandise returned or exchanged - the original shipping fees will be deducted.  See complete shipping and return policy for full details. 

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