K9 Sport Sack Trainer Dog & Cat Carrier Backpack

By K9 Sport Sack
Rated 3.8125 out of 5 stars
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K9 Sport Sack Trainer Dog & Cat Carrier Backpack, Black, Medium slide 1 of 7
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K9 Sport Sack Trainer Dog & Cat Carrier Backpack, Black, Medium slide 1 of 7
Color: Black

$49.95Chewy Price
$59.95Chewy Price

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About This Item

  • Easy to wear with extra shoulder padding and back support.
  • Ventilated side panels give you and your passenger plenty of air.
  • Side water bottle pocket for staying hydrated.
  • Get the perfect fit with adjustable side cinch straps.
  • Minimalist design is paw-fect for walks, short hikes and easy bike trips.
Play Video: Learn More About K9 Sport Sack From Our Team of Experts
Learn More About K9 Sport Sack From Our Team of Experts

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FeaturesCarry Bag, Shoulder Strap, Pockets, Top Load
MaterialPolyester, Nylon, Synthetic FabricPolyester, Synthetic FabricPolyester, Synthetic FabricNylon, Synthetic FabricPolyester, Synthetic Fabric
Breed SizeMedium BreedsSmall Breeds, Medium BreedsSmall Breeds, Medium BreedsSmall BreedsSmall Breeds, Medium Breeds
Assembly RequiredNoNoNoNoNo
Tools IncludedNo Tools RequiredNo Tools RequiredNo Tools RequiredNoNo Tools Required

Questions & Answers

5 Customer Questions

can this be carried front facing as well as back?
Answer by ChewyJun 02, 2020
This backpack can be worn facing front and back.

What is maximum weight in a large
Answer by ChewyApr 28, 2020
Trainer backpacks are rated to carry up to 30 pounds.

Could the x-small be used for a cat?
Answer by ChewyOct 18, 2020
To determine the best fit for your pet, we recommend comparing the measurements of their chest girth and length and comparing it the sizing chart. For a complete sizing chart, click on the 'Size' tab, next to the 'Instructions' tab, just under the product photos. When viewed on the app, Click the 'Size' tab, next to the 'Instructions' tab, towards the top bar above the product image.

How large a dog dose the large support? Does it support 30 pounds or is it to lightweight for that weight?
Answer by ChewyMar 10, 2022
These bags all can hold up to 30 pounds.

ReviewsWrite a Review

Rated 3.8125 out of 5 stars
32 Reviews
Would recommend to a friend

32 Customer Reviews

Rated 5 out of 5 stars
By MOONBUNNY on Aug 9, 2022


I love the K-9 dog backpack for my 11 pound Lhasapoo. He fits great in a small and has room to move, but also hooked in safely with his front paws out. I bought the teal and had his name, Tucker, made to velcro to the pack. Great product and great price.

Rated 4 out of 5 stars
By lindseytaters on May 19, 2022

decent for out long body pup

my pup is difficult to buy carrying cases for because she is part corgi and has a long body, short legs, & is a bit top heavy (she is part pitbull as well). she is just under 30 lbs and most carrying cases are for smaller dogs or bigger dogs, with not many options in between. there is really nothing on the market that is quite right for her because of her in-between weight and ~*~unconventional~*~ build, which is a frustrating because I need to be able to take her on the NYC subway and surrounding commuter rails, which ticket you if you do not have your pet in a bag. I thought it would be a good idea to try a backpack for her, and this product is one of the best carrying options i've found so far. I kept it because it is a well-made product, but it did require some altering for my pup. because she is long-bodied, her legs get squished in it, so I got it altered to have zipper holes at the bottom for her legs to hang out. Overall, it would work better for us if it were longer as well. and had come with some with some kind of function to allow her legs more comfort. Would still recommend to others though!

Rated 2 out of 5 stars
By WallowaSAM on Jan 13, 2022

Not as shown

The picture makes the pack look like you can carry water, but the pocket is too small. The picture that comes with the pack makes it look like there is a pocket for snacks. The pack I received has no pocket. The shoulder straps are uncomfortable for carrying weight of any kind and there is no waist belt. You wouldn't be comfortable carrying a dog around a block in this. The carry space on an extra small is too deep for my puppy (Chihuahua, about half grown.). I am very disappointed and plan to give it away to the local shelter, so they can sell it in their store.

Rated 5 out of 5 stars
By Fahzdo on Mar 18, 2022


This bag was easy to use and allowed the pup to feel stable and secure with adjustable straps supporting his back and holding him close to my body so he wasn't swinging around or anything like that.

Rated 5 out of 5 stars
By Backpac on Mar 21, 2022

Great for travel

This backpack is great for traveling with my buddy. He gets nervous going into certain stores. Using this, he's so much calmer when he gets in his pack!

Rated 5 out of 5 stars
By AndieD on Mar 16, 2022

Perfect for my dog!

This is a great add for my small dog. Once he got used to the bag, he relaxed & enjoyed the ride.

Rated 1 out of 5 stars
By niconbruno on Feb 25, 2022

bad bad bad

So uncomfortable to use also the instructions are from another backpack

Rated 3 out of 5 stars
By pupmom on Jul 15, 2021

Hands Free but In Touch

I was hesitant to order the K9 Sport Sack based on reviews I read that some end-users experienced stitching failures. I have used the size medium now for my new puppy for 3 weeks and it has been very durable. I do wish that the padding on the shoulder straps was a bit more padded for comfort and ease of putting the backpack on. I have some trouble getting the second strap on with my pooch inside. Also, I do recommend that the clip to secure the pack to my pup's collar be on the same side as the zipper and slightly heavier weight; just slightly heavier weight. Travelling and staying in hotels was much easier managing luggage and crate, etc. Also, I just used the pack to mow my lawn; my pup was just fine, noise and all! A nice idea for an advertisement LOL!

Rated 5 out of 5 stars
By Packpack on Aug 27, 2021

Puppy back pack

The backpack for our puppy is wonderful! The construction is excellent with a lot of well thought out detail. Good ventilation, a tie down to keep squirmy puppies from getting loose and plenty of room to grow!

Rated 5 out of 5 stars
By explores on Sep 30, 2021

Einnie explores the world

Our puppy, Einstein, tires out on walks. We do not want to limit his sister’s walks/ exploration/ adventures. The K9 sport sack is out solution! Einnie loves the view from up high. And… he looks super cute!