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Thule Cappy dog harness
Thule Cappy dog harness small
Thule Cappy dog harness small
Thule Cappy dog harness small
Two dogs sitting on the back seat of a car, each securely strapped in with a Thule Cappy dog car harness.
Thule Cappy lifestyle image
A man petting a dog secured in the back seat of a car with a Thule Cappy dog car harness.
A large grey, white, and brown dog lies in the backseat, securely strapped in with the Thule Cappy dog car harness.
Current image number

Thule Cappy

dog car harness S

Size guide

How to choose the right size dog harness
Choosing the right size dog harness is critical for your dog's comfort, safety, and well-being during travel. The harness should fit snugly while still allowing your dog to sit and lay down naturally. When correctly fitted, you should be able to fit two fingers between the harness and your dog. A harness that is too loose can cause your dog to slide or be tossed around during travel, increasing the risk of injury. 


Measure your dog
You need to measure your dog to make sure that the harness you buy will be the right size. Wrap a tape measure around the base of the neck and the widest part of the chest, just behind the front legs.  


 

Size

S M L
Estimated availability Tuesday, 24 June 2025
Crash-tested dog car harness designed to keep both your dog and passengers safe by securing your pet in the backseat.

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Secure every ride with our crash-tested dog car harness

Safety for all passengers

Our crash-tested dog car harness is designed to keep your dog secure in the backseat, providing peace of mind for all passengers on every ride. Built to withstand the forces of sudden stops or collisions, it offers reliable protection by securing your dog with the car's seatbelt system. Unlike tethers or extenders, this harness design keeps your dog close to the seatbelt, preventing forward movement that could endanger other passengers in an accident. In some regions, laws even require restraining pets for the safety of everyone in the vehicle, making this harness an essential for responsible travel.

Ease-of-use

Thule Cappy makes traveling with your dog easy, whether for short trips or long journeys. Its step-in design eliminates the need to pull the harness over your dog’s head, making it ideal for dogs who dislike traditional harnesses. Once secured, the harness allows your dog to move, sleep, and stay comfortable throughout the trip. The coated fabric wipes clean easily, keeping it fresh for every adventure.

Keep it on for the whole trip

The padded mesh panels offer breathability and comfort, keeping your dog at ease on trips both short and long. With a convenient back leash attachment, you can easily secure your dog for quick potty breaks without removing the harness.

Thule Cappy - Feature 1
Crash-tested
Crash-tested and TÜV approved for ultimate safety
Thule Cappy - Feature 4
Easy car anchoring
Easily pass the seatbelt through the back loops to keep your dog secure and minimize forward movement for added safety
Thule Cappy - Feature 3
One-time fit adjustment
Adjust the fit with dedicated straps that are separate from the opening and closing, so you only need to set the size once
Thule Cappy - Feature 2
Step-in style harness
The step-in style harness means no need to pull it over your dog's head, making it quick and comfortable to secure
Thule Cappy - Feature 5
Breathable comfort
Padded mesh panels provide soft support and airflow for a comfortable ride
Thule Cappy - Feature 6
Convenient leash attachment
The back leash attachment lets you keep the harness on for easy short walks and breaks
Thule Cappy - Feature 7
Easy to clean
Smooth, 100% recycled bluesign® PU-coated fabric wipes down easily for hassle-free cleaning

Weight

0.3 kg

Maximum weight of dog

11 kg

Dog neck

34-42 cm

Dog chest

47.5-63.5 cm

Crash tested

Country of origin

China

Model number

771001

How to measure your dog and use Thule Cappy

Manufacturing information

Trademark Registered: Thule Sweden AB
Manufacturer Name: Thule Sweden
Manufacturer Address:  Borggatan 5, 335 73 Hillerstorp, Sweden
Email: support@thule.com
Website: www.thule.com

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