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K9 Sport Sack

K9 Sport Sack® Knavigate


The Knavigate is a combination of all the best features from K9 Sport Sack’s backpack dog carriers. Available in the widest range of sizes, XS-XL, this carrier works for small through large dogs. Each size is equipped with an internal frame as well as a padded hip belt to comfortably support more dogs/owners of all body types. The Knavigate was made for the most avid adventurers and allows for longer, more strenuous activities with your dog.

50 lb (23 kg) weight limit

  • Sizing from XS to XL!
  • Lap Belt on all sizes
  • Hip Pockets
  • Storage Pocket extending underneath the Pet Base to Bottom of Frame
  • Dog Lumbar Support Straps

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All K9 Sport Sack carriers are specially developed under the close direction of animal professionals, veterinarians, dog trainers, and outdoor product engineers to be ergonomic, safe, and strong.

    Shipping, Warranty & Returns


    Domestic orders: USPS Priority Mail shipping (average delivery in 2-5 days unless alternate method is selected). UPS 2nd Day Air shipping is also available.

    International orders: UPS Worldwide Expedited shipping (average delivery in 3-5 days, but varies depending on location).

    For more information regarding shipping click here.


    We cover manufacturers defects and product malfunctions for the first 60 days (Excludes klearance and custom items). Learn more about our policy here.


    If you end up with incorrect sizing don't worry! All size exchanges within 60 days are free (Excludes klearance and custom items). Learn more about our policy here.

    Customer Reviews

    Based on 39 reviews

    I bought it for my little diva because she is getting older. She really loves it. Now when I get the backpack she jumps around because she know that she doesn't have to walk.

    Great for my dachshund

    My little dachshund can no longer hike the way she used to, so this allows her to go with us in style and comfort. She adjusted easily to it in just a couple of sessions with plenty of treats. I got a small for her because of her length, but found that a yoga block in the bottom boosted her enough so that her stubby little legs fit more comfortably and better through the arm holes. If you have a long dog with short legs, order according to their length as per the size chart, but then consider putting a block in the bottom as I did to help get their short little front legs through. The pack itself is quite comfortable to carry, especially with the waist belt. I am very happy with my purchase and would definitely recommend it.

    Sturdy, supportive

    This backpack is reinforced and secures my dog to my back. She loves the wind and new perspective when we bike.

    Great Backpack

    I purchased the Knavigate for my Havanese as we were going to be doing some hiking in Sedona, Arizona, and there was no way my furry daughter could cover the terrain. She loved the backpack - no issues getting her in or out, and was able to enjoy our hikes as a passenger, rather than trying to navigate rocky terrain. Next up - taking her on a bike ride. Great product.

    Good security and comfort

    My Irish Terrier enjoys being high up on my shoulders, great bag, bought only for use on crowded public transport or cycling, now just need to buy electric bike as he's a little too heavy to push up hills!