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  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate
  • Thule Dog Harness Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate

Thule

Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate

Thule Dart Dog Harness | Fidlock Buckle & 3 Lead Attachments | Black & Dark Slate

Regular price £ 69.99
Sale price £ 69.99 Regular price
Arrives in 5-7 business days
  • Magnetic Fidlock® buckle and S-hook neck opening for easy fitting
  • Three lead attachment points for everyday walks and training
  • Integrated safety handle and built-in ID field
  • Reflective details and lightweight water-repellent fabric

Free UK Delivery

Orders Over £49

No-Hassle Returns Policy

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Colour: Black
Size: XS
Quantity
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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.

A brown and white dog wearing a Thule Dart harness in dark slate walking through tall golden grass beside a person dressed in dark outdoor clothing.

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.
Thule Dart harness Feature - Three leash attachment points

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.

Thule Dart harness Feature - Wide size adjustment

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.

Pets Own Us FAQs

Please read our FAQs page to find out more.

For questions not covered in our FAQs, please contact us for assistance

If I change my mind, can I send it back, and who pays?

Yes. You have 14 days from the day your order arrives to tell us you would like to cancel, and another 14 days to send it back. That is your legal right on any online purchase, not something we have added. For change of mind orders, it is the buyer's responsibility to cover return postage, but we can arrange the postage for you for a small deduction from any refund. We will always confirm the figure in writing before you send anything back, and you are welcome to arrange your own return instead. We refund what you paid for the item, plus any standard delivery charge. Please send things back in a resaleable condition. If something is wrong with your order, we cover the return carriage, nothing is deducted, and you choose whether you would like a refund, a replacement or a repair. You can view our full Returns & Refund Policy here.

Will I get confirmation of my order?

As soon as we receive your order, we'll send out confirmation to your email address. This means we've received your order in our system, and we've pre-authorised your payment method, ready for your purchase.

I placed my order but did not receive a confirmation email. Why?

If you recently placed your order and didn't immediately receive a confirmation email from us, then there might be a few issues we can look into: 1. Our emails might be going to your junk or spam folder. 2. There might have been a misspelling when you entered your email address during checkout. 3. Your email server has very strong spam filters and is identifying our emails as spam so the emails aren't going through. If any of these are happening, we encourage our customers to provide an alternate email to support@petsownus.co.uk

How long does it typically take for your products to be dispatched?

Our delivery times vary depending on the product and supplier. Please review each product page for accurate fulfilment timeframes. Some items offer next-day delivery, whereas some can take upwards of 10 business days to arrive.

I have specific questions about an item - where can I find this information?

If you've reviewed the information listed on the product page and still have questions, please reach out to us via WhatsApp or email. Please note that some of our most popular products have their own FAQs at the bottom of the page.

Do you deliver outside of the United Kingdom?

We deliver anywhere in the UK (United Kingdom). There may be additional charges for the 'offshore domestic regions' and 'Scottish Highlands': Channel Islands, Isle of Wight, Isle of Man, Scilly Isles, Scottish Highlands, Scottish Islands and Northern Ireland, these charges will be clearly displayed at checkout. If your address is outside of the UK, please contact us for a delivery quote by email support@petsownus.co.uk.