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K9 Sport Sack® Air 2


The Air 2 is the backpack dog carrier people know best. Available in sizes XS-L, it is a durable, breathable mid-level backpack perfect for smaller to medium size dogs. The Air 2 is offered at a reasonable price while including the essential safety and comfort features needed for a comfortable experience. This backpack is recommended for intermediate grade walks, hikes, public transportation, and bike rides. The Air 2 is constructed with durable Cordura® fabric and form-fitting mesh on the sides for breathability.

For Dogs Ranging 4-30 lbs (2-13 kgs)

AIR 2 sizing: XS 10-13 inches, S 13-17 inches, M 17-20 inches, L 20-23 inches


  • Ventilated side panels for cooling
  • Adjustable dual side pockets
  • Sternum strap with avalanche whistle clip
  • Wide Base to accommodate your pet and its tail
  • Updated Side Mesh
  • New Side and Back Cinch Straps
  • Updated Shoulder Strap Design (No More Popping Off Chest Clips) 
  • Fur Flap (No more zipping your dog's hair in the bag)
  • Adjustable Collar Enclosure

Compare K9 Sport Sack Carriers

K9 dog Carries Comparison

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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.

Customer Reviews

Based on 396 reviews
Marisol Andrade

Perfect K9 sack for my small dog that sometimes (most of the times) doesn’t want to walk. Plus she enjoys it.


Great product!

Jem Sullivan
Difficulty getting my dog in

It took me 3 or 4 tries and two days to finally get my 10 pound rat terrier into my new K9 Sport Sack, but once he was in it he seemed to be okay with it. I even took him for a bike ride, and he remained calm. I figured my next attempt to get him in it would be easier since he didn’t seem too stressed out by the experience, but for the next several days I attempted to get him back into the sack with no success at all. (And I DID watch the instructional videos online.) I really like everything about this product except that it’s so difficult to get my dog into it. The canvas is really stiff, so maybe a lighter fabric would help. Or maybe an extra zipper somewhere so the pack could be opened up more to get the dog more comfortably positioned before enclosing him. Unfortunately, I don’t think I can use this product and I’ve misplaced the shipping info so I don’t even think I can return it. Anybody wanna buy a very slightly used K9 Sport Sack?

K. Hart
Sport Sack

The delivery was fast and perfect. Video instructions and enclosed instructions are helpful. I love the fabrics. It snugly fit my 14 pound Cairn Terrier. I also ordered a Plus 2 hoping I prefer the base with more tail room. I think they will both fit…

Bob M.
Enjoying the New Pack

5 stars on ease of entry, comfort, and ability to see her while riding. Upgrade from other carrrier where only her head was out. Much better temperature control as we are in Texas heat and humidity. Only thing I will modify or change is a better quality collar clip as broke right away but have plenty around our house. Since we use a harness also a clip with short lead to hold her at the back versus the collar will be our personal preference. We love the whole experience.