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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
  • View Patent Info

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. Learn more about our policy here.


    If you end up with incorrect sizing don't worry! All size exchanges within 60 days are free! Learn more about our policy here.

    Customer Reviews

    Based on 21 reviews
    Great Carrier

    The Knavigate is a great upgrade for us from the "trainer". The added support around the waist makes the carrier feel more secure and our dog seems to sit higher so she can look over my shoulder easier. We LOVE K9 carriers and highly recommend them!

    Everything I hoped for!

    I initially ordered this bag for extended hikes with my senior dog. He recently tore his ACL and is awaiting surgery, and this bag is what’s letting him get outside until then! It’s incredibly well made and thought out. I wasn’t sure what 38 lbs. would feel like on my back as I’m a very petite person, but the bag is extremely comfortable to wear. My sweetie seems so comfortable in it and getting him in and out gets easier each time. I will add that I initially bought the trainer which was too small for him and the customer service for the exchange was excellent. Great company, great backpack!

    K9 Dog Backpack

    This is a great product, very high quality. Keeps your pet secured and safe. My Frenchie Pono loves the backpack too.

    Awesome backpack

    Great backpack!! Well made and thought out. The hip brace makes a hug difference. So far I have only used it when I take Omnom with me on the motorcycle. Super secure!! Not at all concerned with him getting out cuz of all the little things that they thought of like the carabiner for the collar and the other safety loop strap. Looking forward to using this for more adventures

    Great post purchase assistance

    I've placed to orders because I' ve made a lot of mistakes placing the first one.
    Tiffanni helped me with both, I've received a full refund for the first order and then I've a lot of difficulties to get the backpack. I'm traveling around US and changing location every 3 days.
    Tiffanni made it happen and I have my Backpack with me.
    Thank you very much Tiffanni and all the K9 team!