Plus 2 - Small, Summer Mint - Ideal for Dogs 13-16” Long - Adjustable, Backpack-Style Carrier with Multi-Functional Storage Pack, Thick Shoulder Straps & Padded Back Panel

We got this for my 18 pound sheltie so we could take her to more crowded events where she's nervous on the ground. I was SURE she would hate it and flail around inside but she could not be more chill about it. This bag is super simple to use. The biggest struggle is setting her inside with her feet tucked under her but we're getting better at it. I love that the inside flap under the zipper is so large. I don't get any of her long fur caught while zipping her in. I also like the the ability to clip her harness for additional security. The padding makes it nice and comfortable for the human. It takes a little adjusting so she can sit higher up, but again, we're getting the hang of it. It doesn't help that instead of wanting to look over dad's shoulders - she decides to just sit back and hang her head to look behind and to the side lol I also love the velcro on both the bag and the detachable bag for name or message (customized patches available on company website - I got a do not touch patch for now - but she did so great I'll just buy one with her name next) The detachable bag is big enough to put her leash in, a bottle of water, snacks and a few more items, as long as you can handle the additional weight. I would advise practicing with all the clips if you get the detachable bag. We did not and made a mess of things trying to do it while out lol It's super simple though if you take the time to sort it out first. We took her to the farmers market for her first outing on a warmish low 80's day, for about an hour, and she didn't seem to get too warm in there. I'm super happy with this purchase and will take it with me whenever we go out just to have on hand when needed. I'm planning on getting another for my second sheltie. He doesn't need it like she does but I find it super useful in situations where it's safer to be off the ground so they can still come with us. .

This review is for the K9 Sport Sack | Dog Carrier Adjustable Backpack (Large, Plus 2 - Light Grey) My pup is a 4 year Glen of Imaal/Parson Russel Terrier Mix. He weighs about 30 pounds which is large for a Terrier because of his Glen of Imaal Pedigree. Overall with the exception of the way the chest strap is attached, the quality is great. There are a couple things I would suggest to improve in the design. One is as you can see in the picture above, the strap to secure the back pack to your chest is not attached well enough to stay on. Once it comes off it is too difficult to get back on. It came off the first time I used the backpack when I tightened the strap. It really does not affect the way the backpack works or fits much at all though. Another thing that did not really fit my dog was the clip on the inside of the backpack that clips onto the dogs collar. In my case is was too restrictive for my dog. His neck seems to be too long for the distance between the clip and the collar. He could not really get his head fully extended which was uncomfortable for him. It can easily enough be remedied by extending the distance by linking another clip though. He did not need a booster pad to sit higher. It fits him nicely and he seems comfortable in it. So far I have used it about 6 times since I received it about 3 weeks ago.

I love the overall concept. My dog fits in it PERFECTLY. She's a very small Westie, only 11 lbs., but solidly built as Westies are. She loves going in the sack, as she is quite arthritic but loves to go outdoors. I love the backpack that allows me to stash our supplies for hiking. My complaints are as follows: 1) the backpack attaches to the sack awkwardly and my supplies rattled against the sack, no matter how well I secured them. 2) the little backpack should have had a separate strap so that it can be worn alone. 3) the straps have to be tightened very tight to keep my dog riding up high on my shoulders. Even so, I felt like I was constantly hiking the bag up, as it was really pulling hard against my shoulders (for reference, I'm 5'2", 155 lbs., hit the gym 5 days per week, can lift fairly heavy, high reps, and I run outdoors). My lower back hurt pretty bad after a 2 hour, 4 mile hike, during which time I carried my dog on and off-- approximately 75% of the time. I look forward to using the bag again. I think some of the design flaws will be improved with time, as this is an excellent concept and the best bag I could find for the money. Side note: I ordered custom patches from the K9 website to complete the bag (they're awesome). The bag comes with a velcro strip to secure the patch, and looks dumb without it. ETA: I got many, many uses out of this bag and my dog enjoyed it, too! Have recommended to friends and family.

I bike a lot for transportation and for fun, so when I adopted a dog I was trying to come up with a way to bring her with me on my bicycle. I found that most dog carriers and backpacks are meant for small dogs, maybe 20 lbs max, and she is 38 lbs. Then I found the K9 Sport Sack, and I got the Air Plus because it is the only version rated up to 40 lbs (the Air and the Urban are up to 30). Now I'm glad I did - the detachable storage bag (I don't have it on in the picture) buckles easily on once I have my dog in the backpack and holds everything I need: leash, food, water, bowl, wallet, phone, bike lock, etc. The Large fits her well, but I wouldn't put a bigger dog in it. I'm not sure that every 38-lb dog would fit, either, but she is lean and long-legged, and within the recommended measurements. I definitely struggled the first few times trying to figure out how to get her into it and get the backpack on my pack - fortunately I have a patient dog! In order to get her in, I lay the bag open on the floor, put my hand under her chest/between her front legs to lift her up and feed her front paws through the arm holes, buckle the bag around her neck, then scoop her rear up and tuck her into the bag and zip it. As far as I can tell, she loves riding in it and has her nose in the breeze the entire time. She adjusts herself every now and then and sometimes leans to the side, but she doesn't wriggle at all; even if she did she is secure. The only thing is, she does get quite heavy after a while! It would be awesome if there were some way to add a hip belt like a backpacking backpack has, as having 40 lbs on my shoulders is a lot after a few miles, but I can see why the backpack doesn't have one because even with the size large it sits a little above my hips. Overall this is a great solution, the backpack is well-made and allows me to take my adventure buddy with me!

Now for one more update after a summer of use, 9/2/18. I have used this pack every other day all summer long to take long bike rides with a stop at one or even two off leash dog parks to let my dog run free and socialize. I have found that I can also include stops at the store to pick up a couple items to carry back home in the side saddle bags. I leave my dog in the pack to go inside the grocery store, as well as ordering at cafes to take outside and then take the food to eat on the cafe patio or to go to a nearby park to eat. No one has objected to my dog in the pack on my back. Quite the opposite. Dog lovers seem to go bananas over her in the pack. I get lots of positive remarks from other shoppers and passing vehicles on the road as well. My dog stays really calm and very quiet while in the pack. Kind of like a security thing for her. It calms her. So no issues in any way with riding. The pack has withstood the heavy use. I do get very sweaty on my back where the pack rests. I wish for improvements here for better ventilation. The straps do flap and flick about in the wind while riding, so I tuck them into the straps to prevent getting hit in the face of me and my dog. When it was crazy hot out. I would stop at public fountains and get her wet or unzip and pour water over her to wet her down to help cool off. My favorite fountain has no pool and thus allows bikes to ride through the center to get good and wet. If I take her to a river beach, I end up with a very gritty and muddy shoulders and neck where her paws rest. The pack is easy to clean off with a hose rinse. And air drys quickly. My dog does look pretty damn cute riding in the pack. Ok, I am updating this review. I've been used the pack for my pup for 3 weeks. I do wish the straps were padded a bit thicker and that there was a hip belt for weight support onto the hips. But. That said, my dog loves to ride in the pack as I ride my bike to the off leash dog park and around town for erands (as long as she gets to get out of the backpack and run, sniff and play at the off leash dog park for some exercise) We get lots of positive comments too. I also need to add that my bike is set up for sitting upright while riding. And this dog carrier pack works just fine in this position. My pup is only 10 lbs. she likes to hang her head over to one side or the other to watch the world go by but this doesn't affect my balance on the bike in the least. I can't imagine using this pack with a dog while leaning over in a more prone position though. So far, my pup seems to tolerate about a one hour ride on the bike. After that she gets a bit antsy and asks to stop and get on the ground. Also, if your dog gets her feet wet and muddy, consider that you will too where their paws rest on your back. :) Also, I use the extra add on accessory pack to store my heavy duty U bike lock and cable and bungie corded onto onto the back wheel saddle bag rack. A very lightweight rain coat can fit into the accessory pack along with a wallet and keys... I have also taken to bringing my bike into the off leash parks and walking the bike along with my dog and using the kick stand to park the bike when we just hang out with other dogs and their humans. Easier than attempting to lock a bike to a wire fence, which is not at all secure. My first rides with this pack and my dog was to give the pack Three stars because the engineering and construction of this pack could improve a lot. I will say that they did improve on the thickness and padding of the shoulder straps since past reviews I read about how thin the shoulder straps were. Zippers seem sturdy. All the stitching is finished and no loose ends. The pack material seems sturdy and should last. Not as breathable as they claim though. The back of the pack is padded and has some room for venting and breathability. This could improve! My mountain hardware day pack would be a great reference for designing a nice breathable pack resting agains a back. As well as improving the straps, adding a thick high end hip belt and placing the chest strap in the correct place! Geeze! that one thing! Getting choked was not good! and this strap is rendered useless if your dog and gear weigh more than 10 lbs!!! My 10 lb. miniature schnauzer was easy to load into the pack and she goes calm and quiet while riding on my back in this pack. She does fit the size small pack. But the bottom where my dog crouches in a sit position slides and angels onto my back flat instead of staying flat and horizontal to the ground for her back legs to fold into a sit/crouch. Maybe with the block they sell separately, the bottom of the pack would stay flat, but that would make my doh not fit the pack. I bought the pack for bike riding to the dog park. After testing out the dog park bike ride, I would never ever use this pack for carrying a dog over 10 lbs while hiking. The incorrect placement of the chest strap and lack of a good thick hip belt make this pack a hell pack and a hell hike with a heavier dog. Plus you would need a companion to come along and be willing to carry your share of lunch, snacks, water, etc. I also got the detachable accessory pouch. Thinking I would carry the - oh so- damn heavy kryptonite bike lock and cable, leash, dog treats and maybe a light rain jacket? It does fit the u-shaped lock, cable for the front tire, leash. and small dog treat/ball pouch and a small collapsable water bowl. There is a smaller outer pocked for a large smart phone, small wallet and keys. No room for a light rain jacket if it's threatening to rain. I would not choose to carry a dog heavier than 10 lb. My bike lock is super heavy duty and heavy and it added 4 more pounds to the entire pack. There is no way I am going to leave my bike unlocked and unattended at a store or a cafe or park. I live in a town where bike theft is very high. Attaching the accessory pack loaded to the back of the dog inside the pack is cumbersome and not good. If the pouch was just light stuff it would be ok. I had one full 16 oz water bottle in the side pouch. When I put the pack on with the dog and accessory bag packed with bike lock, cable, leash, and water bottles. It was 78 degrees and breezy out. I rode 10 miles total with a stop at the dog park in the middle of the ride.With the accessory pouch attached to the pack, and the chest strap snapped, the chest strap rode up at my neck, no matter how tight or loose I adjusted the shoulder straps, choking me. I had to turn around and ride back to the house, take off the pack and remove the pouch and bungie it to my bike's rear saddle bag rack. Without the extra 4 lb pouch, the chest strap would stay just at my collar bone. So in reference to my really high end day pack that carries about 15 lb max with emergency gear and water bladder, food for a long 20 mile day hike up in the mountains, with really nice and thick padded straps, the chest strap rides at mid chest no problem. That is not the case with this dog pack at all. I choose the light grey color to keep my dog and me cooler knowing that the black, blue or red colored pack would attract more solar heat. There is NO PLACE to store the leash except in the water bottle side pouch? I could bring along a saddle bag but then there is the issue of locking up the bike and no way to keep the saddle bag secure and having to schlep it along on on the walk inside the dog park. This dog pack was easy to leave hanging from one shoulder so the sweat and my shirt could dry out while my pup romped, socialized and played with the other dogs off leash. On the return ride, my pup was hot from playing and I did wet my dog with water before putting her back into the pack for the ride home. I am going to give it one more test try before I decide if its going back.

I bought the AirPlus, my dog measured 17 from collar to his feet sitting down and the size small fit him amazingly. I also bought another bag before this one and all I can say is how this one here is probably the best on the market right now. If you need a car seat or let’s say something to hold your dog in while you do something, this isn’t the right product. But for example like in my case it works perfect on bike rides and long walks keeping my dog cooled and comfortable the whole time. Although the straps can be a little tight for me you get used to it over time. I’m only talking about the airplus version by the way, and it was worth every penny. Only downside I see coming from this bag is really nothing. Straps are perfect, size is perfect, storage is more than enough, comfort is good too. This is an honest review from an honest customer!

So 3 stars. The bag itself is great, the straps not so much. I would have returned it but I waited to long after my trip. A little more info about why I hate the straps. My dog weighs 25 lbs, so I figured it'd be hard on my back. We were at the gem show in Tucson walking around for hours. Did this every day for a week. The dogs would ride for maybe an hour or so at a time. I say dogs as my wife had her 10lb chihuahua in her own sport sack. We both had bruises under our arms near our armpits from the straps. The padding isn't near long enough to cushion everywhere the straps touch. Especially when you try and have it tight against your upper back. I have had jansport book bags in the past with more comfortable straps than these things. I really hope they just do it proper and overkill the hell out of it with their next model. Full straps that go all the way around. Lots of cushion. Until then, 3 stars at best simply because again, the sack itself is well made, the dog is comfortable and safe. Getting them into it can prove interesting depending on the dog.

We have a 17-lb taco terrier, and this was her very first time ever wearing a backpack. We weren’t sure how she’d do, but it fit her perfectly and she was comfortable right away. It felt secure without being restrictive, and she didn’t seem bothered by it at all. The design is well thought out, lightweight, and easy to put on. We were honestly impressed with how natural it felt for her, especially as a first-timer. Highly recommend for small dogs, even if they’ve never worn a backpack before.

It is a really great pack for my dog. We can go cycling together😎

Really glad I purchased this item. The backpack is well made and holds my dog securely. I also wasn't sure about how well he would get used to it, but luckily he seems to be enjoying it! Would definitely recommend this purchase.

My son uses it to carry his dog on he Ebike. He says he likes it.

Excellent quality. Easy to get her in and out. Straps stay snug which is important because we use it on the motorcycle. Great mesh areas to keep her cool. She seems to love it.

Mi Boston Terrier ya lleva varios viajes en el metro con esta maravilla. La gente se ríe de ver al perro en su maleta. También es fácil agarrar taxi. La otra vez el taxista se dió cuenta que llevaba un perro hasta que llegamos a nuestro destino. Más vale pedir perdón que pedir permiso.