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SealLine Boundary Dry Pack

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    • Yellow, 35L
      sale $72.99
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      sale $70.38
    • Black, 35L
      sale $72.99
    • Yellow, 70L
      sale $78.70
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      sale $78.57
    • Yellow, 115L
      sale $94.46
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      sale $86.57
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      sale $94.46
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      sale $94.46
    • Green, 70L
      sale $80.23

    63 Reviews


    Explore more water.

    When you finally get that invite for a 22-day float down the Grand Canyon, load up the SealLine Boundary Dry Pack and point yourself towards the Southwest. This watertight dry pack is fitted with an adjustable and ventilated shoulder harness, making it an ideal candidate if you're planning on hoofing your gear a long ways up to camp or making frequent portages. A durable vinyl construction resists wear after being thrown out of the gear boat day after day, and the two vertical cinch straps make it easy to keep your gear secure when you're packing things up with a slight pounding in your head—it's easy to get a case of the one-more-beers when you're camping in the desert.

    • An easy-to-haul dry bag for multi-day river trips
    • Durable, waterproof vinyl construction with watertight closure
    • Adjustable and ventilated shoulder straps and waist belt
    • Suspension system can be removed for easier packing
    • Vertical compression straps on the 70 and 115L keep gear tight and secure
    • 35L roll-top secures with a single top buckle
    • Made in USA from imported materials
    • Item #CAS0360

    Tech Specs

    ⚠️ WARNING
    This product can expose you to chemicals including diisononyl phthalate, which are known to the State of California to cause cancer.
    35L (1830cu in), 70L (4271cu in), 115L (7017cu in)
    Backpack Carry
    yes, ventilated
    70L, 115L
    [35L] 10 x 14.5 x 20in, [70L] 9 x 17.5 x 25in, [115L] 12.5 x 18.5 x 30in
    Claimed Weight
    [35L] 1lb 14oz, [70L] 2lb 9oz, [115L] 3lb 6oz
    Recommended Use
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    SealLine Boundary Dry Pack

      The most comfortable, supportive, long-haul packs on the market. With all packs made in the USA, SealLine combines its history of rugged, dependable materials with adjustable, premium suspension.

      Keeps things dry!

        Used this on a 6 day river trip, unpacking and repacking all my gear pretty much every day. It kept everything dry, stood up to getting thrown around and lashed to the boat. Still looks pretty much new!

        DRY bag

          You gotta have a good dry bag! This bag is awesome, I've had several dry bags in the past that just weren't very durable, but this is durable and comfortable. These bags are great for river, kayak, canoe, etc. trips where you need to bring a ton of gear.

          Dry Bags

          • Familiarity: I've put it through the wringer

          I've purchased this in a 70L and 35L and can't say enough how amazing they are. When you are rafting or kayaking it sure is nice to have the dry bag on as a backpack-It leaves both hands free for ducky/raft/kayak hauling. They were both bigger than I was anticipating. Would recommend for anybody looking for a durable, nice dry bag.

          Exceeded expectations

          • Familiarity: I've put it through the wringer

          Bought two of these for a week long excursion into Quetico Provincial Park, Canada. After 1 week, 17 portages and several thunderstorms they look like brand new. Would absolutely buy them again.

          survived the Grand Canyon

          • Familiarity: I've put it through the wringer

          I bought this because I was hiking into the Grand Canyon and meeting up with a rafting trip at Phantom Ranch. There were others with their bags as well and I think this was among the best. It was not the most comfortable in terms of hiking the 9mi down into the canyon, but was the only one among my friends that had a waist strap (its very basic strap). It took a lot of hits in the rapids and in the 120*F heat it held up perfectly. I took a 35L and it was great - might get a larger one for future trips.

          Highly recommend, especially at this price.

          River Guide Esstential!!!

          • Familiarity: I've put it through the wringer

          I bought this to use guiding river trips in New Zealand. Very hand to have proper backpack straps to carry it uphill to the campsite everyday (and have free hands to help carry clients gear!!! WIN!!) It held up through daily river abuse through the whole season. A few spots starting to wear but no leaks! I purchased the yellow 70L and it had plenty of room for my tent, sleeping bag, clothes and extra clothes etc. Can hold 2 peoples gear if you pack only 2 sets of clothes.

          Overall it really made a difference this past summer!

          Does the job!

          • Familiarity: I've used it once or twice and have initial impressions

          I bought the 35L for some canyonerring down in Zion National park and it fit my wetsuit, a change of clothes, helmet, lunch and a pair of shoes for the hike out. Also doubles as a floatation device. Seems quite durable and kept everything in my bag dry when completely submerged. Only thing I would change is the waist straps. It would have been nice if they were more like a backpacking pack like their Hydraulic pack. Also wish they had a 45-50L model. *Disclaimer* if you put any wet items inside the pack you will create a small contained climate and you risk getting all the items inside the pack wet.

          Keepin' the goods dry!

          • Familiarity: I've put it through the wringer

          These dry bags are great, i have a 90L and it fits all the necessary stuff for a 8 day river trip and then some. I've flipped with this dry bag on board and everything was bone dry. If sealed up correctly it truly works.

          Awesome Dry Bag

          • Familiarity: I've used it several times

          Purchased this for my canoe trip in the Quetico. The bag worked perfectly to keep my things dry, and made portaging easier. My gear was kept dry in a down pour and during general paddling inside of the boat.

          Great Drybag

          • Familiarity: I've used it once or twice and have initial impressions

          The 115 L is HUGE. I packed three sleeping bags, clothing for three people, one Thermarest and a Eureka Mountain Pass 3XTE three-person tent (including ground sheet)into this for a four day trip. And my teen boys don't pack light when it comes to clothing. It is so huge that you can't even reach the bottom of it when you are trying to pack it. Not sure I needed one quite that large, but when it's closed and tightened down it still fits crosswise in a canoe.

          As for performance, it performs as expected. I gave it four stars instead of five because I don't yet know about durability, although it seems very durable.

          I also bought a 70L one, which is a more manageable size. Very good product.

          Boundary Pack on 5 Day Rafting Trip

          • Familiarity: I've used it several times

          I purchased this bag for a rafting trip at the end of June. It held all my essentials: clothes/layers, sleeping bag, tent, shoes with room for a few extras. The backpack feature rocked as we set up camp each night and had to carry our gear. I'm looking forward to more trips with this pack and may even use it for winter trips.

          great drybag; could use some tweaking

          • Familiarity: I've used it several times

          I'll start off by saying this drybag is solid. I've taken it out for a couple of week-long trips and it provides all the functions that I expect of a drybag: the construction is good, it seems like it will hold up for a long time, it's easy to pack and, most importantly, it keeps your stuff dry.

          That being said, there are a couple of things that would take this drybag from good, to stellar. I have the 70 liter, which I find is more that enough space to pack a week's worth of stuff. I personally think that the proportions of the bag are a touch off, though, in that the bag is a little too tall and skinny so it's difficult to unpack something towards the bottom without unpacking your entire bag (disclaimer: I just transitioned from a lateral bag so this could very likely be a personal prejudice). The only other feature that I would like to see is a handle at the top of the bag. The backpack straps are great for carrying this bag around camp or on short hikes but I think a hand-hold loop at the top of the bag would make it easier to rig in a gear-boat.

          All in all, though, worth it.

          black 35L unboxing

          a video of when i first got the bag. I have canoe camped with it and have been very happy with it

          If you don't mind me asking. What all were you able to fit in your 35L for a week? I'm planning on picking up one of these and trying to decide on a 35L vs 70L. I have clothes, tent, sleeping bag, and pad to haul.

          All day.

          • Familiarity: I've used it several times

          Just bought the 115L for canoeing into the bwca - I liked it a lot.

          It was more comfortable than I expected on the portages. Kept everything dry in some pretty heavy rain with no issues.

          Also, detachable back straps were a nice feature.

          Works for me!

          • Familiarity: I've used it once or twice and have initial impressions

          I have only used this bag on one canoe trip into the BWCA so far but thought I'd give my two cents on it.

          When the package arrived I immediately looked for damage due to the folding/packaging of it as other users have spoke of. Low and behold, there it was. The discoloration of the material in the folds was very noticeable right away. After a thorough examination, and given the fact that I had no time to return it, I decided to go with it and see if the material had actually been compromised to the point that there would be problems. No such luck. The bag held up to some fairly good abuse of being thrown in and out of the canoe and shuffled around the campsites.

          I was able to fit enough gear for my wife, my daughter and I for the weekend(and we brought the kitchen sink too if you know what i mean!). This did not include the food as i always keep that in a seperate system.

          Overall the bag seemed to hold up and worked great to keep everything dry and clean as it did rain most of the trip. These bags obviously don't breathe so if you put your tent/tarp in there wet, the condensation will get the entire contents of the bag wet if you do not pack your stuff into seperate systems in lightweight dry bags. Such as putting your clothes in one, sleeping bag in another etc.

          As for being comfortable, make sure you think about how you pack it and it is not to bad for the shorter poratages of a mile or so. Anything longer, depending on how you pack it could get a little uncomfortable as the strap system is not really up to speed as far as backpacking is concerned.

          Improvements to the strap system and the packaging damage issues would help this bag a bunch!

          All in all, it worked for me!

          Works for me!

          Will these dry bags be great for keeping items dry for hurricane season?

          Hey Julia,

          Yes, it will keep your items dry in a hurricane or a river trip. The backpack straps make it super easy for you to transport the pack. If you don't need backpack straps, I would recommend going with the SealLine Black Canyon Drybag. They are less expensive and they collapse smaller for storing when not in use.

          Unanswered Question

          hi I would like to know the height of a 35L bag, I am quite short (5"3) and need a bag that doesn't fall to my knees when I carry it. thanks!

          Has anybody ever used this for canyoneering?...

          Has anybody ever used this for canyoneering? The description says that it could be used, but i'm very hesitant on whether it would last against regular abrasions from sandstone.

          I've dragged these around quite a bit and never had a problem. They're pretty stout. Are you more looking for the waterproof pack or just a rugged bag that seals up reasonably effectively? If it's the pack and being waterproof, this would probably be the one. If you just want a brutal water-resistant bag to stow gear and move it fairly short distances in and don't so much care about comfort, the BD haul bag would take more abuse.

          I have been using industrial strength trash...

          I have been using industrial strength trash bags for my multi-day canoe trips but they just don't seem to do the trick. Will the 115L dry bag easily hold two sleeping bags, two sleeping pads, a tent, pillows, and a few other misc items (like jackets and hiking boots)? Will the 70L bag also fit all this gear? Also, what is the difference btw this bag and the Black Canyon 115L dry bag? Both are by SealLine but there is a big price difference.

          Best Answer

          Hey there,

          Look above to Chris's review. He was able to fit two sets of gear (bags, pads, pillows, etc) into the 115L bag. This same stuff would certainly NOT fit within the 70L bag. This will certainly be better than trash bags and will last much longer. This bag is made from scrim-reinforced vinyl, while the Black Canyon bag is made from Double-coated nylon. Generally speaking, scrim = woven and woven = tough. Both are roll-top bags, though this bag has cinch straps (70L & 115L models) for additional compression. They should both work excellent for any water adventure. Read the reviews, Google the materials and design and make your choice.

          According to the Seal Line web site, the difference between the Black Canyon bags and the regular Boundary bags is that the Black Canyons are more durable, lighter weight, and more eco-friendly by avoiding PVCs.

          I bike 60 miles round trip to work a day...

          I bike 60 miles round trip to work a day rain or shine. I'm looking for a new pack to put my change of clothes, papers, and sometimes laptop in. Would the 35l be a good choice?

          I didnt see a weight on Backcountry. Any idea how heavy this is?

          Donald has you covered on the weight, but as to suitability of purpose and comfort, I'll give it a shot. It's obviously going to give you the volume and waterproof performance you'll need for the rainy days, and it would be "comfortable" in the sense that it's not going to be painful to wear or anything, but since it's not really intended for anything beyond gear storage and comparably short portages of considerably less distance than 30 miles at a pop, or cycling, you do have better options. My thought would be to go with a more form fitting pack that's going to offer a stable load carry, hydration capability, a ventilated back panel, and a built-in rain cover that you can pull out only when you need it. Off hand, I would look at the Stratos Series packs from Osprey. All the features you need, and a variety of choices in volume that I believe run from about 24-36L. Much better suited line of packs for what you're looking for. Hope that helped.

          Best Answer

          The problem with using normal day packs for cycling is that the back of your helmet will likely collide with the top of your pack, as most 30+ liter day packs utilize an internal frame. I tried using my Deuter 30 liter Futura Zero pack--but couldn't ride at all because of the horrible helmet/pack interference. So, make sure whatever you decide on is not too tall (which means you'll likely have to choose a pack without a frame). I'll tell you what I eventually did: I switched to panniers, and I haven't looked back.

          Good point, Jesse. I was considering that very issue last night when it came to top loaders. For that reason, of the Stratos Series packs, I would narrow the choice down to the Stratos 34, since it still has good volume, but is a lower profile panel loader.

          I realize I am weighing in a little late in the conversation, but SealLine also makes a commuter dry bag/backpack the Urban Backpack. It has the dry bag weather proofness with a little more backpack comfort.

          Unanswered Question

          hip belt is small and not padded. but it...

          hip belt is small and not padded. but it was comfortable to me on my longest portage of about 2 miles with about 45lbs. i did have a problem with it twisting to one side when i was trying to portage with the canoe on my shoulders at the same time. after about 3/4 of a mile i had to drop the canoe and come back after i droped my pack off. this should be on the answer column but i hit the wrong button.

          what about the hip belt - does it have one...

          what about the hip belt - does it have one and is it padded enough to carry 50-60 pounds a few miles?

          Best Answer

          It has a small hip belt, but not padded, I do not think it will hold 50-60 lbs comfortablyDustin- as they said it is NOT padded. They do have one which is large and has a padded belt. It is called the Sealline Pro Pack. Backcountry link - showing the padded waist belt -