# Thule Cappy Dog Car Harness, Large \(771003\)

The Thule Cappy dog harness, model 771003, is a step-in harness intended to secure a large dog in a car using a seatbelt passed through rear loops. Adjustable straps, padded mesh panels and a leash loop also support day-to-day handling.

- [Original product page](https://loonieperks.com/product/thule-cappy-large-dog-car-harness-771003)
- [View offer](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- Market: CA
- Language: en-CA
- Currency: CAD
- Brand: Thule
- Model: 771003
- Category: Pet Supplies > Pet Toys & Accessories
- Price: 118.95 CAD
- Previous price: 149.95 CAD
- Discount: 21%
- Price checked: 2026-11-13T12:31:01.056Z
- Rating: 4.3 / 5
- Reviews: 94

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Rear loops allow a vehicle seatbelt to pass through the harness, which the listing says helps limit forward movement.
- Step-in construction avoids pulling the harness over a dog's head.
- Separate adjustment straps are intended to be set once without changing the opening and closing adjustment.
- Padded mesh panels are described as providing airflow and soft support. The title also claims easy cleaning.
- The listing describes the harness as crash-tested and TÜV approved. These are manufacturer claims, not independent verification here.

## Pros

- Seatbelt passthrough is designed for car travel and the listing describes it as helping reduce forward movement.
- Step-in access can simplify putting the harness on dogs that dislike gear being pulled over their heads.
- Padded mesh panels and separately adjustable straps offer practical comfort and fit features.

## Cons

- The one-size listing is also labelled for large dogs, so shoppers with dogs outside that stated size range may find the fit unsuitable.

## Specifications

### Identity
- Brand: Thule
- Model: 771003
### Dimensions and installation
- Dimensions listed: 38.1 x 26.92 x 4.06 cm; 500 g
- Weight listed: 500 g
### Materials and protection
- Material listed: Polyester
### Fit and configuration
- Listed size: One Size
- Dog breed size: Large
- Colour: Black
- Closure type: Zipper

## Before you buy

- Crash-testing and TÜV approval are listing claims. Customer feedback reports mixed views on safety, fit and comfort, so check the harness fit carefully and follow its vehicle-use instructions.

## In the box

- Harness (Included)

## A good fit for

- Owners of large dogs looking for a step-in harness with seatbelt passthrough for car rides.
- Buyers who prefer a harness with separate fit adjustment and padded mesh panels.

## Less suited to

- Dogs that do not fit a large-dog, one-size harness.
- Buyers seeking a product whose crash-safety performance is independently verified by this guide.

## Customer feedback

Customer feedback describes the harness as solid and easy to use, including easier harnessing. Views on safety, fit and comfort are mixed. For car travel, ease of putting it on may matter, but mixed fit and safety impressions make it sensible to assess fit carefully and treat the crash-testing statement as a listing claim.
- Positive themes: Customer feedback highlights perceived durability and ease of use.
- Mixed feedback: Customer feedback reports mixed opinions about safety, fit and comfort.

## Frequently asked questions

### How is the Thule Cappy attached for car use?
The listing says to pass the vehicle seatbelt through loops on the back of the harness. It describes this as helping keep the dog secure and minimize forward movement.
### Does the harness go over a dog's head?
No. It has a step-in design, which the listing says avoids pulling it over the dog's head.
### What size is this model listed for?
The specifications say One Size and Large dog breed size. Check the fit against your dog's measurements before buying, as no measurement range is provided here.
### Is crash testing independently confirmed?
The listing claims crash-testing and TÜV approval, but those claims are not independently verified in the supplied information.

## Alternative options

- [Kurgo Tru-Fit Enhanced Strength Dog Harness, Crash Tested Car Safety Harness for Dogs, Includes Pet Safety Seat Belt, Steel Nesting Buckles, Front D-Ring for No Pull Training, L, Black](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [Ruffwear, Front Range Dog Chest Harness, River Rock Green, Large/X-Large \| Four Points of Adjustment, Foam Padded for All-Day Comfort, Two Strong Leash Attachment Points, ID Pocket and Reflective Trim](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [rabbitgoo Dog Harness, No Pull for Large Dogs with 2 Leash Clips, Pet Vest \| No Choke with Handle, Adjustable Soft Padded, Reflective, Easy Control for Walking, Black, Large](https://loonieperks.com/visit/rabbitgoo-dtcw006l-large-black-dog-harness)
- [rabbitgoo Dog Harness for Large Dogs, Updated Easy On & Off with 3 Buckles \| No Pull No Choke, Walking with 2 Clips and Handle, Adjustable Soft Reflective, Blue, L](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [rabbitgoo Tactical Dog Harnesses for Large Dogs, Heavy Duty Military Vest \| No Pull, Metal Buckles, Molle System, Sturdy Nylon, Powerful Pullers, Adjustable, Outdoor, Training, Black, Large](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [Lafoty Dog Lift Harness for Large Male Dogs Friendly, 2 in 1 Detachable Support Harness for Back Legs, Full Body Dog Carrying with 4 Handles, Post Surgery Recovery\(Black, X-Large\)](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [rabbitgoo Tactical Dog Harness for Large, No Pull Military Service Vest \| Molle System & Handle, Heavy Duty, Adjustable, Reflective Straps, Easy Control for Training Walking, Black, L](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [Ruffwear, Front Range Dog Chest Harness, Spring Mountains, Large/X-Large \| Four Points of Adjustment, Foam Padded for All-Day Comfort, Two Strong Leash Attachment Points, ID Pocket and Reflective Trim](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [rabbitgoo Dog Harness, No Pull Medium Breed with 2 Leash Clips, Pet Vest \| No Choke with Handle, Adjustable Soft Padded, Reflective, Easy Control for Walking, Black, Medium](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [rabbitgoo Escape Proof Dog Harness for Large, No Pull with Lift Handle \| Soft Padded Full Body, Reflective Adjustable Vest, No Escape, Leash Clip for Walking Hiking Training, Black, Large](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [Ruffwear, Front Range Dog Chest Harness, Red Canyon, Large/X-Large \| Four Points of Adjustment, Foam Padded for All-Day Comfort, Two Strong Leash Attachment Points, ID Pocket and Reflective Trim](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)
- [Kurgo Dog Harness \| Car Harness for Dogs \| Medium \| Black \| Pet Safety Seat Belt \| Certified Crash Tested Harness \| Car Seatbelt \| Tru-Fit Enhanced Strength Style](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)

## Add-ons

- [Mighty Paw Dog Seat Belt \| Pet Safety Belt, Created with Human Seatbelt Material. All-Metal Hardware with Adjustable Length Strap. Exceeds Dog Safety Standards. Keep Your Dog Secure in The Car](https://loonieperks.com/visit/thule-cappy-large-dog-car-harness-771003)

## Images

![Thule Cappy Dog Car Harness, Large \(771003\) — 1](https://loonieperks.com/i/oIKlYL5-gHtOqnVVSNwb68lRjg-0mqEtOV4nnCUxCemB9humdhzgt6r04mqCeYBzpnYeysPkrFoB2vxiyA1dTggeYf4m0mk8vOQbtNQNO7VraPcEGMII9KKY.jpg)

![Thule Cappy Dog Car Harness, Large \(771003\) — 2](https://loonieperks.com/i/sz2V4m4ZmRC3BWJn9tA_hYCQV8ff4-DQ39XKT8MkgGVnpmHshKK9xSLISu6vc0Hrs0ucNNmmImsnxDwyy6a3ge6htlFbQTq_5Drpaiy9xaIFtsmhEtTR2DNb.jpg)

![Thule Cappy Dog Car Harness, Large \(771003\) — 3](https://loonieperks.com/i/_gvEtawU_XrA-wXnQaiB9xmfWRcJnSBOBZIZMfnK36yjss5pY96Pw4DB_iJmvGtzpWSRhBg0jV8orIlEyY9_EkR1D1joJCeAH1YGBcPE-im5dQbuuHA1-wth.jpg)

![Thule Cappy Dog Car Harness, Large \(771003\) — 4](https://loonieperks.com/i/A1ausqpo-H_qjNWFc7wWEe0y8nh8NUO6eW1OZ2e7f_q7yH6CNDEUKobgGKlgk264euI9paQxfW6OAmt-ZPjXhO9Ah4ok0yBzoV781BUnWYvSDQ7YpRgM7MPM.jpg)

![Thule Cappy Dog Car Harness, Large \(771003\) — 5](https://loonieperks.com/i/mQtiqo8LSPc0JkE5c5Gl3UKtOyWKDOkwa_N1gISxsJGMUaLZvsAfM9FHrDV8647vZC7DrtC393tk6DAUALSocmDCRTc0Zcq4RwWOsfoFpKQyLYqFsd8wcXuZ.jpg)

![Thule Cappy Dog Car Harness, Large \(771003\) — 6](https://loonieperks.com/i/3qohCcAlPe_ugYubzpZJgcMxBvDWa9QulKoxji_-XIhaQdcMAq7oP7EQ9twtK4jfUKJ81g_eZEzuS5PNfmKHxNzFKbXmOwYl9cp-o4n-30wi_hn2GgUwrYVv.jpg)

![Thule Cappy Dog Car Harness, Large \(771003\) — 7](https://loonieperks.com/i/UrjLnAqL0zUnRpoZ7d8y-6VmG8kp5xrXgETDyuBFLZ_kvvLhIpL3OlcUm01KJ-f7vnM-UJOevN2pPvzn8KA38PmV656z2hTahPgC-fklZYqe33tKKeAlDpgk.jpg)