

🎒 Carry your best friend in style—never leave adventure behind!
The K9 Sport Sack Air Medium is a veterinarian-approved, adjustable dog carrier backpack designed for medium-sized dogs up to 30 lbs. Featuring breathable mesh sides, ergonomic shoulder straps, and safety harness attachments, it’s perfect for hiking, biking, and travel. With multiple sizes and a sleek design, it ensures comfort and security for both dog and owner, backed by a 60-day quality guarantee.






| ASIN | B0C7GRQ288 |
| Best Sellers Rank | 42,883 in Pet Supplies ( See Top 100 in Pet Supplies ) 84 in Dog Carrier Backpacks |
| Brand Name | K9 Sport Sack |
| Closure Type | Zipper |
| Colour | Urban 3 - Concrete |
| Compatible with Vehicle Type | Motorcycle |
| Customer Reviews | 4.2 out of 5 stars 37 Reviews |
| Dog Breed Size | Large |
| Global Trade Identification Number | 00810080630871 |
| Included Components | Adjustable Backpack for Dogs |
| Item Dimensions L x W x H | 52.1L x 24.1W x 3.8H centimetres |
| Item Type Name | Adjustable Backpack for Dogs |
| Item Weight | 0.69 Kilograms |
| Manufacturer | K9 Sport Sack |
| Manufacturer Part Number | URB3 |
| Material Type | Faux Leather |
| Maximum Weight Recommendation | 30 Pounds |
| Model Name | URB3 |
| Model Number | URB3 |
| Number of Items | 1 |
| Pet Type | Dog |
| Product Style | Modern |
| Recommended Uses For Product | Hiking, cycling, public transport, shopping |
| Size | 52 cm L x 24 cm W x 4 cm H |
| Special Features | Padded Bottom |
| Target Audience | Dog |
| Target Species | Dog |
| UPC | 810080630871 |
| Unit Count | 1.00 count |
R**R
If you have nothing nice to say...
Susie is a mix breed, I measured her and weighed her before ordering, just under 22" from shoulders to tail and 43lbs. Cons: 1) This sack is no where near a large, it's more of a sm-edium, I could not even get her front legs into the holes without worrying she would be hurt and then it wouldn't zip up and had to use the clips only to hold her. 2) The shoulder straps are sewn on extremely low. If your pup is fully filling this sack out, the majority of their weight will be at the top of it which means they just lean back putting MASSIVE strain on your shoulders and abs if you're trying to sit or stand straight up without leaning forward. 3) The sack is very cheaply made, it held together for one short ride but I honestly will not trust it again. I was expecting some durable material like my old green army sack but this thing, it feels like a cheap windbreaker. Pros: N/A Do not buy. All thumbs down.
D**C
Convenient And Nice
I liked that I could have my boy on my back and go to bigger much more packed places without having to worry about leash tangling around me or something else if he gets anxious in a public space, it also attracts a lot of attention (the good kind where everyone thinks it’s cute) I plan on using it to take him to see more of the world, malls, hiking, zoos, party type events where he’d be nervous or scared of how much is going on around him. 9/10 would recommend, I got a size Large for my dog for his size and it fits perfectly( I’ll provide a picture of his size outlook)
M**S
Great for taking our dog on bike rides or walks
This is great! Comfortable for me and my dachshund! He only weighs 15 lbs but because he is so long I bought the large bag and it worked out great! Thanks for the video on instructions, made it easy to learn how to use it.
L**D
Great backpack
Don’t usually do these reviews but reading these helped, I bought a cheaper backpack for my dog and a different version cause I didn’t want to pay the $80 something dollars for this one….. just do it cause the cheaper version was not bad but my dogs comfort and my comfort with this one is so much better! I love riding my bike with my dog!! 30 pound runt cattle dog and got a size L
L**U
Fits our dog comfortably.
Haven't used it yet, but the dog likes it. Going to Balloon festival and will use to take our dog on to the grounds.
Trustpilot
2 months ago
3 days ago