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K9 Sport Sack

K9 Sport Sack® PLUS 2


The Plus 2 is a backpack dog carrier with a multi-functional storage pack. The storage pack is great for bringing gear, treats, or other necessities along on your adventures. It also acts as a support for your dog’s back, pulling your pup in snuggly against your back. Available in sizes S-L, its thicker shoulder straps and padded back panel allow for more weight and strenuous activities. The Plus 2 is our most complete carrier for small to medium sized dogs and fits dog owners small to large in build.

40 lb (18 kg) weight limit 

  • Detachable storage bag (14"x9") Don't forget your gear!
  • Fully ventilated sides for maximum refreshing air flow
  • Padded back panel for increased comfort and cooling
  • Thicker, wider, pressure relieving shoulder straps
  • Mesh dual side pockets for increased ventilation
  • Ventilated cooling side panels
  • Adjustable dual side pockets
  • Sternum strap avalanche whistle clip
  • Newly added PLUS 2 features include:
  • Wide Base to accommodate your pet and its tail
  • Adjustable Side and Back Cinch Straps to ensure the best fit
  • Fur Flap (No more zipping your dog's hair in the bag)
  • Adjustable Collar Enclosure

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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 (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 319 reviews
    Riggs 1st ride

    I took a chance that my dog would like this. Well he loved it!!!! I have been giving out where I got this at, people have been asking me.
    I highly recommend this if you have a slow walking dog or a dog that just can’t walk or if you just like to take your dog on adventures!!!

    Absolutely love it!!

    Love the backpack, it is perfect for my dog!! She loves going for bike rides now, and hikes that she used to not be able to finish she can come along now and rest when she’s tired!!! Very happy I bought it!!

    My dog loves this!!

    I have an 18 month old Westie girl. She is a little timid around people she doesn't know and around big dogs, and it is hard to get her to walk very far. Now, all I have to say is Annie let's get the pack and she jumps on a chair so I can put her in it and puts her front paws in the air. She loves it!

    Climbing Trail

    Our beagle boy Flo was sceptic as we approached the edge of the hill. So using our K9Sportsack was the best solution to continue our trail. Flo was super calm and enjoyed the view on horseback ride

    Game changer!

    I am an active owner with an aging corgi. Now we can bring her on bike trips with us and she absolutely loves it!! This item is so well made and she sends to be comfortable and cool for miles. Excellent product!! I recommend it to everyone!! Definitely worth the price. She comes running to get in it when I put it on the ground. I got a size Large for her and it's the perfect fit!