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K9 Sport Sack

K9 Sport Sack® Air 2

$63.70 $74.95

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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)

Sizing chart, measuring the length of your dog from its collar to the base of its tail. Extra Small, 10-13 inches. Small 13-17 inches. Medium 17-20 inches. Large 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

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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.

Shipping, Warranty & Returns


Domestic orders: A variety of UPS shipping methods are available. Please allow for 1-2 days of packaging before your item ships, 2-5 days if ordering a waterproofed or custom item.

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 excluding original shipping costs (Also excludes klearance and custom items). Learn more about our policy here.

Customer Reviews

Based on 324 reviews
Jessica Ramirez
Happy Chuy

La mochila es muy cómoda para un perro de raza pequeña y su acompañante.

Monika S
Love it!

It will take a minute for our Mini Bernedoodle to get accustomed to her new “sack”, however at first try she did great. Love the quality and concept.

Yorkie on the go

This is the best product for people who want to bring their dog everywhere. (Me) My rescue dog loves her backpack and gets excited when I bring it out. She does wiggle a lot around in it to get the best view but she’s secure. She is a Toy Yorkshire Terrier and weighs ~6.5 lbs. Not quite as tiny as the Teacup Yorkie but still little. We got the XS and she needs the booster block which is sold out. We have a small hand towel folded up at the bottom to take up space.


Our pup suffers from severe separation anxiety. This pack lets me take him with us. He is an elder so can’t go on extra long walks anymore. He is comfortable and happy and that’s what matters most! The K9 sport sack is very well made and offers him the support he needs. Would highly recommend! Oh and the general public LOVES it. I have sent more people to the K9 sport sack site than I can count on two hands.

Debra Balka
Really Impressive Carrier!

We put our new K9 carrier to work today while hiking in Utah. We are very impressed. Louie seemed very happy in the carrier and my husband said carrying him on our hikes felt easy and comfortable. We were able to take Louie in and out of the carrier with no problem. This is an exceptional product. We did put a rolled up towel on the bottom of the carrier so Louie was a little higher up, but other than that everything fit perfectly. I felt like he was very safe and snug in the carrier. We also ordered the name tag and it’s adorable! We recommend getting that too.