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REI Ultra Dog PackOnly At REI


    REI Ultra Dog Pack

    The REI Ultra dog pack combines well-designed features with durable, high-quality materials to make your dog's backpacking experience sheer joy! See details

    • $74.50

    Item # 832677

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    The REI Ultra dog pack combines well-designed features with durable, high-quality materials to make your dog's backpacking experience sheer joy!

    Product size and color

    The REI Ultra dog pack combines well-designed features with durable, high-quality materials to make your dog's backpacking experience sheer joy!

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    The REI Ultra dog pack combines well-designed features with durable, high-quality materials to make your dog's backpacking experience sheer joy!

    • 100% post-consumer recycled PET body is built tough to stand up to heavy outdoor use
    • Sleek and lightweight cord compression system pulls the pack load up and close to the body for unmatched stability
    • Water-repellant zippers help seal out the elements and protect the contents from moisture
    • Zippered expansion panels let you increase or decrease the saddlebag volume to match your dog's load
    • Zippered top pocket on each saddlebag holds small items within easy reach
    • Harness combines mesh for breathability and padded sections for comfort; perforated EVA foam reduces weight without sacrificing comfort or durability
    • Short lead is integrated into the harness handle to help guide or hold your dog when a longer leash isn't needed or available
    • High-strength aluminum leash ring is easy to grasp while clipping on a leash
    • Harness buckles feature a unique cam lock to eliminate webbing slip even when wet

    Sizing is based on girth, which is measured around the widest part of your dog's rib cage.


    Item 832677

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    View specs for sizes: S, M, L

    REI Ultra Dog Pack Specs
    Best use
    26 - 35 inches32 - 41 inches35 - 46 inches
    7 - 8.5 liters11.5 - 13.5 liters17.5 - 21 liters
    427 - 518 cubic inches701 - 823 cubic inches1,067 - 1,281 cubic inches
    2 + 2 main compartments2 + 2 main compartments2 + 2 main compartments
    Recycled PETRecycled PETRecycled PET
    9.5 x 6 x 4 inches10.5 x 8 x 4.5 inches12 x 9.5 x 5 inches
    1 lb. 2 oz.1 lb. 5 oz.1 lb. 6 oz.
    Fits dogs
    Gear capacity (L)
    Gear capacity (cu. in.)
    Number of exterior pockets

    REI Ultra Dog Pack

    Loading Ratings & Reviews...

    REI Ultra Dog Pack is rated 3.7838 out of 5 by 37.
    Rated 5 out of 5 by from Worked Great This backpack was very easy to put on my dog and the adjustments were very easy to use. I was worried that they would come loose on a hike but after a 4 mile 2000 ft climb they held in the same position. The pack has lots of room for food and water and I also put her boots in it. We have hiked about thirty miles with it now and it shows no signs of wear.
    Date published: 2014-04-12
    Rated 5 out of 5 by from Worked Great On The First Try I've seen a lot of comments about the fit of this pack, and almost all of them are along the lines of " dog weighs (blah blah blah) and it didn't fit right,". . . pay attention to the product info, people - the fit is based on SIZE, not weight. My 55lb Lab/mutt Neil is the same size as my 75lb Lab Sally, but his girth is only 27 inches versus her 32 inches: he's wearing a SMALL, and it fits just fine. A lot of other comments concern the length of the belly strap, and they have a better argument - it is a bit short, but if you start with the belly strap and then adjust the rest it works out pretty good. Neil didn't even get a "test drive" with his - we strapped him in, loaded him up and off we went - he barely noticed. The various volume adjustments for the main pockets are convenient, though the secondary pockets are too small to be of much use. The water resistant zippers are a nice touch, as is the bits of reflective piping. The color is a good contrast for most dogs (I think) although Hi-Viz Orange or Retina-Melting Yellow would really be better choices, especially if you're hiking during hunting season. As for capacity - plenty of room for four half-liter bottles of water, snacks, food, a collapsible bowl and more. All said, I'm quite pleased with this product, and Neil seems to be OK with it too - and that's the important part, right?
    Date published: 2014-04-12
    Rated 4 out of 5 by from Great Pack! I have done a lot of research on dog packs and wanted to ensure I got a pack that would provide the best weight balance for my dog. Today was our first day with the pack and we had no issues with my dog accepting the pack. It fit him pretty well, I had to tweak the straps each time I put it on him, but the straps are super easy to adjust. I have a 90lb German Shepherd and he is mid size between the Medium and the Large, the belly and waist straps fit beautifully. I have the shoulder straps are completely sinched up an the pack still feels a bit lose but I was able to use chest strap sinching to keep the pack in place. We got a lot of great feedback about the pack and people wanting to know where we got it. I am excited to continue using this with my dog on future hikes. After the 4-5 mile hike on varied terrain he had no irritation or hot spots. Great product!
    Date published: 2014-04-12
    Rated 5 out of 5 by from Great pack, well made, tough My blue heeler and I take this pack out all the time. I bought a small, he is 40 lbs and it fits him good, but any bigger than 40 lbs I'd get a Medium. This pack is well made, he runs through the timber, brush and treks through snow all day and the pack does great. He will roll in the snow and the pack stays in place. It has a metal clip at the shoulder for a leash, I've used it as a safety rope for the dog when we're hiking and have to cross deep or swift streams. This doggie backpack's not cheap, but you get what you pay for and I think it was worth the money.
    Date published: 2014-04-12
    Rated 5 out of 5 by from Great dog pack. I bought this pack for my 12moths german shepherd, she´s 58 lb and medium fit perfectly. It took one minute to forget the pack empty and two treks to get use to weight.
    Date published: 2014-04-12
    Rated 5 out of 5 by from Perfect Dog Pack I did a lot of research before purchasing this pack a year ago. I wanted a pack that could expand to carry a few of my pup's things, or shrink down when he doesn't need to carry much. We started out training him to wear it on our trail runs together with nothing in it. We are based in West Texas; so, overheating was definitely a concern, but the empty pack didn't seem to cause too much stress. With stuff in it, he is a little slower, but that is to be expected Now that he is used to it, he loves putting it on. We use it for trail running, hiking, and going to events. It's great for the trails because of its high visibility, the carry handle, and the harness leash point (it was a great training aid when I was teaching him to heel - prevented him straining his neck with a traditional collar). It has been great for events, because he carries his own bowl, snacks, and toys and it keeps it easy to corral him around lots of folks. I haven't taken him backpacking with it yet, because most of the time I go, I'm on a work trip. Nonetheless, I think it would be great for an extended trip - leaving the owner to carry only water and extra comfort items. The drawstrings and expansion zippers have their obvious benefits. I haven't been able to balance water on him quite well yet, but I'm not sure if it is the pack, or the carrying container I'm using. I've tried a few times to use a standard wide-mouth 32 ounce nalgene, but it just gets so lopsided. If you were to use a waterbag instead of a hard plastic bottle, you could perhaps utilize the drawstring to keep the weight in and tight, but I think the owner might still end up carrying the water for the dog. The fit of the pack has been tricky, as you'll note in the pics below, he's an in-between size dog (about 35 lbs.). I opted for the small, and I've been trying to dial in the straps every time. The buckle cams pop open frequently, and you could probably remedy that with taping them down once you get the fit right. I'm just still waiting before I tape it all in place. Thoroughly happy with the quality, construction, and visibility. Would not hesitate to recommend this over the other bags I've reviewed.
    Date published: 2014-04-12
    Rated 5 out of 5 by from It's all about the fit I recommend that you bring your dog with you to REI to fit this pack. I'd say they run big; my dog is an old English bulldog, about 47 pounds. We first tried the medium and it was a tad too big with the straps pulled as tight as they would go. So we went back in and grabbed a small, and it fit perfectly. This pack was Leila's 4th birthday present as we were planning a hike in the White Mountains for the weekend. It fit 2 20 oz water bottles, 2 collapsible food bowls, 5 cups of kibble, a bag of treats, and a chew toy without expanding the bags. The first thing I noticed when we started out was that she wasn't pulling. She is notorious for pulling pretty strong, and maybe it was the added weight, but it made it so much easier for us to pace ourselves. The metal ring seems to be attached pretty well. The waterproof zippers are great. We had to cross a few rivers and the packs got mostly submerged for a few seconds with no water getting in. She rubbed up against rocks and trees all the way up, and the pack didn't budge once. Finally, the handle at the top was awesome. Any time she needed a hand, I was able to grab onto it and help her up, or help her across some water. All in all, this is a great pack if you want to have your dog carry his or her own weight on a hike, or carry some of your stuff to the beach, or for a quick walk. Seems to be well constructed, and certainly pretty stylish, she got compliments the whole time!
    Date published: 2014-04-12
    Rated 4 out of 5 by from Great Pack for Price I picked up this pack for my 75lbs boxer who accompanies me into the wilderness on hikes. So far he's really enjoyed the idea that he's carrying weight but I guess that's just his old-world working breed mentality. I've had no problems with chafing or hot-spots and overall I would say that pack is a great value with enough niceties to warrant a solid recommendation. Here's some thoughts below on the good and bad. The good: The size M he wears has pouches that are each large enough (once expanded) to carry a full 1L platypus bottle of water and a 1gal ziploc bag full of approximately 6-8 cups of kibble. He gets about 4 cups of food a day, so he can carry about 4 days of food on his body WITH water. Alternatively, since water is heavier and I'm a lazy pet owner boarding on slave-driver, I carry the kibble and made him carry 4L of water if we're hiking somewhere dry (think desert southwest) while I carry 3L of water in my camelbak. The fit is, at least on my dog, snug and secure. With everything properly tightened down the load distribution doesn't have to be absolutely exact on each side to keep it from shifting or sagging to one side, which is nice. The padding on all the straps seems nicely made and thoughtful, with buckles receiving a flap of padding under them to keep anything nasty from rubbing. The bad (or the could-be-better): The straps did take a lot of trial and error to get quite right. At the end of the day I ended up tightening the two shoulder straps to their limit to pull the pack as far forward onto his shoulders as possible, and where he's strongest. It took me a whole minute to realize that yes, the buckles can become opened, but by simply threading the excess straps back through on themselves, they won't work loose. The sizing was a bit odd, but I also have an extremely chesty (deep chest) dog with a tiny waist. That said, I'm happy to report while I'm at the limit on some of the straps, he doesn't pee on them when lifting his leg. My biggest gripe is one that I have with all the dog packs I can find (at least on this site): they have no attachment points anywhere for lashing things to the pack. A line of simple daisy chain loops along the length of the mesh where the packs attached to the mesh, would make the pack infinitely more useful. I always pack in a bed-roll for my dog in either blanket or stuff-sacked down quilt since he has really short fur, but attaching it to the pack meant first creating a paracord-based system myself, followed by bungees. It works, but man it would be nice if someone would consider that once you have a strong, all-muscle, canine in your backpacking group, you might want to have them carry something that doesn't fit in the pouches! Conclusion: It's a great pack. Buy it! Take your dog to REI or take advantage of the REI return policy and make sure you get the right size. The pouches are sized nicely and you won't be disappointed considering the REI option is a lot cheaper than others but just as equipped.
    Date published: 2014-04-12

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