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.
** 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. **
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.