K9 Sport Sack Air 2 Forward Facing Dog Carrier Backpack

By K9 Sport Sack
Rated 4.2626 out of 5 stars


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$55.96Chewy Price
$89.95Chewy Price
In Stock
FREE 1-3 day delivery

About This Item


  • Features a thick rest pad so your pal can “sit” comfortably, while leaving his paws and head out to explore.
  • Easy to put on with adjustable chest strap for your pooch, adjustable shoulder straps with whistle clip for you, and easy-pull zipper.
  • Great for hiking, errands, long walks, rucking and everything in between, with light reflecting chest strip for added safety.
  • Additional features include adjustable side pockets and a fuzzy fastener soft side to add custom tags, lights and more.
  • Veterinarian-approved design with built-in safety D-ring for collar hookup and fully ventilated sides.

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Learn More About K9 Sport Sack From Our Team of Experts

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FeaturesInterior Tether, Pockets, Top Load, Water-resistantPockets, Water-resistantCarry Bag, Pockets, Shoulder Strap, Top LoadCarry BagAirline-approved, Collapsible, Interior Tether...
MaterialSynthetic Fabric, Nylon, MeshSynthetic Fabric, PolyesterSynthetic Fabric, Nylon, PolyesterSynthetic Fabric, Polyester
Breed SizeSmall Breeds, Medium BreedsExtra Small Breeds, Small BreedsMedium BreedsSmall Breeds, Medium BreedsExtra Small Breeds, Small Breeds
Assembly RequiredNoNoNoNoNo
Tools IncludedNo Tools RequiredNo

Questions & Answers

34 Customer Questions

Do there legs hang out of this?
Answer by ChewyMay 11, 2018
Your pets front legs will come out of the top of the carrier a bit but their whole body, including their hind legs, are inside the carrier.

Will the large fit a 31 pound male French Bulldog? Chest /girth 25 inches?
Answer by ChewyJun 29, 2019
The large holds a maximum weight of 35 pounds and is recommended for dogs measuring 20-23 inches in length.

Does this pack have clips on the rear facing side over the zipper or not? Some pictures show it does others, it does not. Not very clearly advertised.
Answer by ChewyFeb 26, 2018
There are clips over the rear zippers to better secure your furry friends.

Where is the chart for the girth? It tells you to measure it and my dog is 19” in girth but I can’t figure out the right size. Also for the length.
Answer by ChewyApr 28, 2020
To measure body length, measure you pet in the begging position, from the base of the neck to the base of the tail. To measure chest girth, measure around the widest part of the dog's chest. Please refer to the complete sizing chart below:

ReviewsWrite a Review

Rated 4.2626 out of 5 stars
198 Ratings
Would recommend to a friend

198 Customer Reviews

Rated 5 out of 5 stars
By Allison on Nov 9, 2023

Great sizing for dashalier

My dog is a dachshund and cavalier king charles mix, and the large is a great length and width. I bought the bolster separately. Because of her doxie length, I didn't want her to be too restricted with a medium. She's 12 lbs. The medium probably would've worked just fine.

Rated 5 out of 5 stars
By Morgan on Nov 10, 2023


Amazing purchase. I did a dog 5k but Jacque being a French Bulldog I knew he wouldn’t be able to run the whole time. I purchased this bag and it came in so clutch. Jacque loved it so much

Rated 5 out of 5 stars
By JuneDogMom on Aug 12, 2023

Great Quality and Secure Fit

I was worried it wouldn't feel sturdy enough, but its very well made and all the straps and buckles secure my dog very well. From collar to rump/tail, my dog is getting older and often tires on walks and really just wants to accompany me everywhere. She is only 13 lbs but is 21" long from collar to rump/tail; I bought a medium, but a small probably could have worked too. She likes the firm bottom of the bag and feels secure enough in the bag to fall asleep or enjoy the view. But her favorite thing is the wind in her face when we go down hill on a bike. Honestly, I was skeptical but am impressed.

Rated 4 out of 5 stars
By Ric on Aug 17, 2023

Almost perfect

Worked great for the most part but the shoulder straps seem kinda short for taller people. I'm 6' and I guess since we have small dogs and got one small size and extra small, they just seem to fit shorter people like my wife and daughter. The middle chest strap fit too high on my chest even at the lowest setting. The small didn't fit one of our smaller Yorkies and chewy refunded our money right away and I ordered the extra small which fit her perfectly.

Rated 1 out of 5 stars
By Traczzz on Aug 27, 2023

Zipper Broke 1st Use

My new puppy is finally big enough to use this for the 1st time today. She’s 20 lbs and I purchased a booster seat to go with since she’s smaller and the pack is a size large. Halfway through our hike, I felt her hind legs dangling out. The zipper failed. Luckily she wasn’t hurt.

Rated 5 out of 5 stars
By Jenn on Jun 1, 2023

Amazing quality! Very pleased with the construction & instructions/videos on proper use. BUT- I bought this for our 20 lb Havadoodle who fits the dimensions for the medium (17” long). She fit but looked way too uncomfortable. She found a way to wiggle herself sideways to track my husband when he went out of sight lol. Plus I tried it on vacation in The Smokey Mountains on an incredibly hot 86 degree day. Not the most pleasant experience for either of us. The main reason for this pack was to keep her with us while traveling in the motor home & we had to go into a store or a short day trip. It’s too hot for the summer months I feel. I’m returning it but will look for a cooler material to replace it. This is well worth the money, just be mindful of the weather while using!

Rated 2 out of 5 stars
By oslo on May 22, 2023

not for bigger dogs

It says up to 30lb but I wouldn't recommend it for dogs that big. It looks so uncomfortable for my poor pup, who is 20lb with long limbs. It takes a long time to put (more like stuff) him into the bag and it feels like his legs and tail are being squished into a horrible squatting position. I wish it had leg holes. He doesn't whine or cry but seems stunned and unhappy in it. It also gets so heavy... I can't imagine wearing it for more than 10 min for either of us. Will be trying a different backpack out.

Rated 5 out of 5 stars
By Isabel on Oct 31, 2023


The K9 Sport Sack backpack is great! Easy to carry my dogs in it.

Rated 5 out of 5 stars
By VeggieLisa on Apr 24, 2023

GREAT BackPack for small-med dogs

I/we LOVE this K9 Sport Sack Air2 backpack. We have an 18 pound Cavapoo (King Charles Cavalier + Poodle). This has helped us immensely as she can go with us places she couldn’t before, including stores, biking, or hiking where I might not want her to be walking (muddy path, burrs or other areas that I don’t want her walking through). Measuring a dog for this pack is a challenge - there is just no exact location for “collar” nor exact location for “tail base” so that measurement can vary. Our puppers measured 17.5” so we were right on the border and puppy would have maybe fit well in a Small size OR a Medium. I went with a Medium, and while she fit in it okay, she sunk a little lower than I wanted. So for our 18lb dog, we instead got the small size in black and it’s perfect! I wouldn’t recommend this bag for a dog much larger than 20 pounds, only because carrying that weight is a little tough, and it is pretty hot on MY back while carrying the dog… great for short hikes and bikes, but depending on the temps, it could be a challenge. The name badge can be purchased through the company who does the bag - I looked for this via Chewy, but not available except by the company K9 sport Sak. GREAT bag… highly recommend. Well made, strong, pretty easy to get puppy into (after some practice and a patient dog)… all in all 5 stars!

Rated 5 out of 5 stars
By Noey on Feb 10, 2023

Wish I had this sooner!

Love this product! This dog backpack is pretty great! I wish I got this sooner. My sweet pup is slowing down from cancer, and I got this to use for some last adventures together. When he was a puppy I tried another pack that I had to sit him into - he would absolutely NOT go for that. This design is a lot better and well made! I watched a video tutorial about how to use the pack and that helped a lot. It was a little tricky to get him into at first but he allows me to get him into it and once on, he seems comfortable. For me, the pack is decently comfortable, but for a heavier dog, I'd definitely get the bigger pack with more padding/cushion/bigger straps. I do have to cinch up the straps almost as high as they go to keep him up high enough on my back... it's not the most comfortable thing but totally okay for short periods, I've only used it for about 30 minutes at a time. If I wanted to use the pack for longer periods, I would probably get one of the higher end models - but for quick activities this is perfect! For sizing, my Scottie is 22lb and 16" neck to tail - by the size chart he could have gotten into the S but after reading other reviews and looking at photos, I got the M and I think it's perfect. If between sizes, I'd size up because you can add a towel or blanket to fill out if there's a little extra space.