• K9 Sports Sack Knavigate dog backpack carrier in black and grey with adjustable internal frame and padded hip belt
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable frame and padded hip belt
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable frame and padded hip belt
  • K9 Sports Sack Knavigate dog backpack carrier in grey with padded hip belt and adjustable internal frame
  • K9 Sports Sack Knavigate dog backpack carrier in grey with padded hip belt and adjustable frame
  • K9 Sports Sack Knavigate dog backpack carrier in black and grey with adjustable frame and hip belt for comfort and support
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • Black Knavigate dog backpack carrier by K9 Sports Sack with adjustable frame and padded hip belt
  • K9 Sports Sack Knavigate dog backpack carrier in grey with padded hip belt and adjustable internal frame
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable frame and padded hip belt
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable frame and padded hip belt
  • Black K9 Sports Sack Knavigate dog backpack carrier with padded hip belt and adjustable frame
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable straps and padded hip belt
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  • K9 Sports Sack Knavigate dog backpack carrier in black and grey with adjustable internal frame and padded hip belt
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable frame and padded hip belt
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable frame and padded hip belt
  • K9 Sports Sack Knavigate dog backpack carrier in grey with padded hip belt and adjustable internal frame
  • K9 Sports Sack Knavigate dog backpack carrier in grey with padded hip belt and adjustable frame
  • K9 Sports Sack Knavigate dog backpack carrier in black and grey with adjustable frame and hip belt for comfort and support
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • Black Knavigate dog backpack carrier by K9 Sports Sack with adjustable frame and padded hip belt
  • K9 Sports Sack Knavigate dog backpack carrier in grey with padded hip belt and adjustable internal frame
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable frame and padded hip belt
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable frame and padded hip belt
  • Black K9 Sports Sack Knavigate dog backpack carrier with padded hip belt and adjustable frame
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sport Sack Knavigate dog backpack carrier, product view
  • K9 Sports Sack Knavigate dog backpack carrier in grey with adjustable straps and padded hip belt

K9 Sports Sack

K9 Sports Sack | Knavigate Dog Backpack Carrier | 5 Sizes | Black or Grey

K9 Sports Sack | Knavigate Dog Backpack Carrier | 5 Sizes | Black or Grey

Regular price £ 179.99
Sale price £ 179.99 Regular price
Arrives in 5-7 Business Days
  • Available in 5 sizes from XS to XL
  • Internal frame and padded hip belt on all sizes
  • Hip pockets and dog lumbar support straps
  • Designed for extended outdoor adventures
  • Maximum dog weight 22.7 kg (50 lb); choose by back length and check chest girth for a comfortable fit

Free UK Delivery

Orders Over £49

No-Hassle Returns Policy

Complete Peace of Mind

Charity Profit-Share

10% Back to Good Causes

Expert Advice

Via WhatsApp

Size: X Large
Colour: Midnight Black
Quantity
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The do-it-all carrier for serious adventures, built around an internal frame.

The K9 Sport Sack Knavigate brings together the best of the whole range. Every size has an internal frame and a padded hip belt, so weight sits on your hips rather than your shoulders, making it the most comfortable choice for longer hikes and full days exploring. With five sizes from XS to XL it offers a choice of fits for dogs within its 22.7 kg (50 lb) capacity, and it's made to be durable and stable mile after mile.

K9 Sport Sack Knavigate dog backpack carrier with hip belt

Key Features

  • 🐾Internal frame in every size - stable, structured support for the wearer and the dog
  • 🐾Padded hip belt - shifts the load onto your hips for comfortable long-distance carrying
  • 🐾Hip pockets and a large storage pocket running beneath the pet base for all your gear
  • 🐾Dog lumbar support straps - keep your dog comfortable and well-positioned
  • 🐾Five sizes (XS-XL) - the widest fit range in the range, subject to the 22.7 kg (50 lb) weight limit and correct fit
  • 🐾Built for the outdoors - durable, stable and vet-developed

Getting the size right

Maximum dog weight: 22.7 kg (50 lb). This is the Knavigate model's capacity limit, subject to correct fit; it is not a weight-based size recommendation.

Check three things before choosing: weigh your dog; measure back length from the base of the collar to the base of the tail with your dog standing; and measure chest girth around the widest part of the chest, just behind the front legs. Use back length to choose your starting size, then check chest room and sitting height. Being below the weight limit does not guarantee a comfortable fit.

Between sizes or broad-chested? The manufacturer recommends sizing up where needed and using a suitable K9 Booster Block to achieve the correct sitting height. Ask us for help with your dog's back length, chest girth and weight before ordering if measurements fall between the ranges.

K9 Sport Sack carriers are sized by your dog's back length, so please measure before ordering.

1. Measure the back length from the base of the collar to the base of the tail, with your dog standing.

2. Match it to the size below. Your dog should sit comfortably with their legs through the openings. Between sizes? Size up.

3. Unsure? Watch the fitting video below or message us on WhatsApp with the back length, chest girth and weight.

Size Back Length (collar to base of tail)
X-Small 9 - 12" (23 - 30 cm)
Small 13 - 16" (33 - 41 cm)
Medium 17 - 19" (43 - 48 cm)
Large 20 - 22" (51 - 56 cm)
X-Large 23 - 25" (58 - 64 cm)

🐾 Not sure which carrier to choose? Take our 60-second quiz

Choose by back length, not weight alone. If your dog is between two sizes, size up.

Sizing video

Every K9 Sport Sack is developed with vets, trainers and outdoor-gear engineers for an ergonomic, secure, strong fit. Introduce it gradually with treats and praise and keep early trips short. Questions or help with sizing? Message us on WhatsApp.

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.