# Thule Cappy Dog Harness L, Model 771003

Model: The Thule Cappy Dog Harness is a size L step-in harness designed for car travel, with seatbelt passthrough loops and a separate fit adjustment. Its backseat restraint setup and padded mesh panels suit buyers seeking a harness that can serve both car rides and leash use.

- [Original product page](https://best-deals.pro/product/thule-cappy-dog-car-harness-large-771003)
- [View offer](https://best-deals.pro/visit/thule-cappy-dog-car-harness-large-771003)
- Market: US
- Language: en-US
- Currency: USD
- Brand: Thule
- Model: 771003
- Category: Pet Supplies > Pet Toys & Accessories
- Price: 94.95 USD
- Previous price: 119.95 USD
- Discount: 21%
- Price checked: 2026-11-14T06:49:55.163Z
- Rating: 4.4 / 5
- Reviews: 97

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

- The listing describes the harness as crash-tested and TÜV approved. These are manufacturer claims, not independently verified here.
- Back loops are designed for routing a vehicle seatbelt through the harness to limit forward movement.
- Dedicated fit straps are separate from the opening and closing mechanism, so the listing says the size only needs to be set once.
- A step-in design avoids pulling the harness over a dog's head.
- Padded mesh panels are described as providing support and airflow.

## Pros

- Seatbelt passthrough loops give it a defined backseat restraint setup without a separately described tether.
- Separate fit adjustment and step-in access may make routine fitting simpler.
- Padded mesh panels offer a comfort-focused design for travel.

## Specifications

### Identity
- Brand: Thule
- Model: 771003
### Dimensions and installation
- Dimensions listed: 15 x 10.6 x 1.6 inches; 1.1 pounds
### Design and use
- Harness style: Step-in Design
- Car restraint feature: Seatbelt Passthrough
- Leash feature: Leash Loop

## Before you buy

- Confirm that size L fits your dog's measurements before buying. Customer feedback is generally favorable about fit, especially for larger dogs, but some buyers say the harness does not accommodate a wide size range. The crash-test and TÜV approval statements are listing claims, not independently verified here.

## A good fit for

- Dog owners seeking a step-in harness with seatbelt passthrough for backseat trips.
- Buyers who prefer a harness with separate fit adjustment and leash loop.

## Less suited to

- Buyers who need a fit guaranteed across a broad range of dog sizes without checking measurements.

## Customer feedback

Customer feedback highlights perceived build quality, ease of use and appreciation for the crash-tested design. Fit reports are mixed: some customers say it fits well, particularly on larger dogs, while others say the available sizing does not cover a wide range. This matters because the harness depends on an appropriate fit for its seatbelt-passthrough use. Overall ratings lean positive, but do not establish fit for a particular dog.
- Positive themes: Customers describe the harness as high quality and solidly built.
- Positive themes: Customers report that it is easy to use.
- Mixed feedback: Fit feedback includes reports of a good fit, particularly for larger dogs, as well as concern that the sizing range is limited.
- Mixed feedback: A customer summary notes a report that the seatbelt holds securely through the harness when pulled quickly. This is an individual observation, not a verified performance result.

## Frequently asked questions

### How does the Cappy harness attach in a car?
The listing says to pass the seatbelt through the back loops to secure the dog in the backseat and minimize forward movement.
### Does it go over a dog's head?
No. It uses a step-in design, so the harness is put on without pulling it over the dog's head.
### How should I check the fit?
The listing identifies this as size L and describes dedicated adjustment straps. Compare your dog's measurements with the size guidance on the selected listing, since customer feedback includes both positive and mixed fit experiences.
### What comfort features are described?
The listing describes padded mesh panels intended to provide soft support and airflow.

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- [Sleepypod® Clickit Sport, Crash-Tested Dog Car Harness, Orange Dream, XL](https://best-deals.pro/visit/thule-cappy-dog-car-harness-large-771003)
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## Images

![Thule Cappy Dog Harness L, Model 771003 — 1](https://best-deals.pro/i/qkOr6Qpur6W_0QD-KaRCrIGasJubrToOAWnqKw2kDyvsu5I0N8lfnAJ21nlTOpwdkATTVH-xUpHla8nWsEyvX5d9cRxCx4b3tix5awDMhWKbodt5AVch.jpg)

![Thule Cappy Dog Harness L, Model 771003 — 2](https://best-deals.pro/i/mJvJoeydirOGF6Dc-QaJoFUF4Fvz0H2BRYO7kOy-JhA0R7e68r392i1smuyuD4cr68Xedcxzdx1zvcoacTX1zRX6hGPraVxtR2PVDtg-JLVGXJawCqS4.jpg)

![Thule Cappy Dog Harness L, Model 771003 — 3](https://best-deals.pro/i/6_4RXS_kfnaSPmZhD6ehmWpn5n5tWgbCbLUoSmNC-xJ3qsLafurbDQCTfUhaOR6RjR2QehX5TQc5f1gMt0W3K-yIQz1Dih91fHMdD9N-MKUV6i6yqAa2.jpg)

![Thule Cappy Dog Harness L, Model 771003 — 4](https://best-deals.pro/i/BRIoFVLlKo65JH5IhHB1CJhgTNCOftSdEMt_5GvuPtqk6lM_ZQnRwbDYGuVUl7VJA-oTiFmcnLxwlGdxP5OzybfEDdCrrEkIiJbqz0Wbh5VtKWt9d7dK.jpg)

![Thule Cappy Dog Harness L, Model 771003 — 5](https://best-deals.pro/i/3MYfq1z5BWctPuFBAcvrktO_tay-wlB12HpwykTOW69yRlYtfYumrbR3BTTmsdTNLfEinYFu4mUAg_-lJUsuq2sU4s-WuBAknDxiV3SPOLRxT7ZZBjvk.jpg)

![Thule Cappy Dog Harness L, Model 771003 — 6](https://best-deals.pro/i/55PcKQJ-yUg9GLkNMsO5J10oNjJ9ojjSV5YQgPMNA9zdP0jexiZwUR-G5_a2FV3udBg2-GsXN_qDvMU0YccwqXahJdiAv_4L5eB2jwZCVppTkpqror1R.jpg)

![Thule Cappy Dog Harness L, Model 771003 — 7](https://best-deals.pro/i/18dAyEsVyC_vjifAzGVwVxAG6TXuIXhkwIIXP7YDrAumhG4Os2Rfzp68ZWnz3_OwE-sNCRYFMRpfo8-posXxp0anfezQdmNCwbAF8KfCJ3ug3nJnKpkT.jpg)