
Made for daily walks. Ready for the next adventure.
Give your dog room to walk, sniff and explore in the Thule Dart harness. Designed for active dogs and regular use, its adjustable fit supports natural movement, while practical details make getting out of the door easier. Choose Black or Dark Slate, a muted blue-grey shade, in five sizes from XS to XL.

The magnetic Fidlock® buckle and S-hook neck opening make fitting simple. Once you are out, choose the lead attachment that suits your walk, and use the integrated handle when you need closer control. Reflective details improve visibility as the light fades, while the discreet ID field keeps your contact number on the harness.
Key Features
- Magnetic Fidlock® buckle makes putting on and taking off the harness quick and straightforward.
- S-hook neck opening opens the neck section for easier fitting.
- Three lead attachment points: a front clip to help reduce pulling, a back clip for everyday walks and a rear lower clip for added stability during training.
- Integrated safety handle offers extra support and close control when needed.
- Reflective webbing and logo help your dog stand out in low light.
- Built-in ID field under the handle lets you write your telephone number directly on the harness.
- Adjustable, lightweight and water-repellent, with fabric that wipes clean after everyday adventures.

Sizing Guide
Measure your dog with a soft tape around the neck where the harness sits and around the widest part of the chest behind the front legs. Match both measurements to one size below. These are dog body circumferences, not the flat dimensions of the harness. Choose by measurements rather than breed or body weight; check that the adjusted harness is secure and allows comfortable, natural movement. If the measurements do not fit within the same size, contact us before ordering.
| Size | Dog neck circumference | Dog chest circumference | Harness net weight |
|---|---|---|---|
| XS | 25–37 cm | 32–42 cm | 0.12 kg |
| S | 31–47 cm | 40–53 cm | 0.14 kg |
| M | 39–58 cm | 50–65 cm | 0.23 kg |
| L | 48–71 cm | 62–80 cm | 0.28 kg |
| XL | 60–84 cm | 77–95 cm | 0.33 kg |
All five sizes are available in Black and Dark Slate. Net weight is the weight of the harness itself, not a dog weight limit.

Everyday Care
Wipe the water-repellent fabric clean after walks. Hand wash only; do not machine wash.
FAQs
How many lead attachment points does it have?
Three: front, back and rear lower. The front attachment helps reduce pulling; the back suits everyday walking; the rear lower point adds stability during training.
Can the neck section open?
Yes. The S-hook neck opening makes fitting easier, alongside the magnetic Fidlock® buckle.
Where can I add my contact number?
Write it on the white ID field underneath the handle.