Floating Waterproof Dry Bag Backpack, Roll Top, 5L/10L/20L/30L/40L

Update February 2026: I’ve owned this bag over 3 years now. It’s traveled with me to Roatan Honduras multiple times now and over 75 diving trips. I use it through the summer at home out on the boat as well. The bag keeps all my stuff dry and has held up very well! This is a very good quality bag.I took this on a scuba diving trip to Honduras, used it multiple times over course of two weeks everyday. Hauled my essential gear wallet, towel sunglasses, snack, drink etc. on an open bow diving boat shared by 6 other divers. To say everything gets wet is an understatement! This bag performed flawlessly, it’s built well and good quality I’d imagine I could do the same trip several dozen times and beyond and get the same performance. Kept everything dry and as an added bonus the orange color made it very easy to see amongst everything else that was a big plus! I’m very satisfied with this bag !

Overall, this is a great product. I work as a commercial seaplane pilot in the Bahamas, and wanted to upgrade my pilot bag to something waterproof, high visibility, and easy to carry/use.I ended up buying two of these bags: One was the 10L Hi-Vis Orange bag, and the other was the 20L Hi-Vis Yellow bag. I'll review both, starting with the 10L.10L Bag:One thing you have to keep in mind with these bags is that they require 3-4 folds before you buckle the top closed to be effectively waterproof. What this means is that the bags are not as tall as you would think just looking at them in the package. I haven't actually attempted to measure the size of the bag when it is closed to see if it is actually 10L, but I would assume the overall space is reduced when closed (especially depending on how many folds you put in before closing it). With this being said, I can easily recommend the 10L for 3-4 medium sized handheld items (which I will specify now).For myself, I stored an aviation headset bag (measures about 6x4x10 [LxWxH]), a pilot logbook (6x2x12), my passport booklet, sunscreen, and an ipad mini. It was snug, but I could still get 3 rolls and latch the bag shut without any problems. Initially this was okay, but I wanted a little more room so that I could bring extra items like extra clothes, bandages, water, etc. as my days are long and spent in the sun.Now, I carry the 10L bag with me (Folded up nicely in my 20L bag) as an extra buoy if I have to cut an anchor line. These bags are air tight when closed properly and will hold any residual air inside once closed. All I have to do now is blow a little air in the bag, roll it, latch it, and it is a buoy or flotation device.The 10L bag is great if you don't have TOO much stuff to carry, but I'd caution you to go with the larger option if you are unsure and aren't confined to a small space for the bag.20L Bag:The 20L bag functions the same way as the 10L, but supplies twice the space. I have plenty of room for all of the items mentioned above, and some. An added benefit is that the 20L comes with 2 straps instead of one, so I can wear it as a backpack when walking around the islands. Beyond that, there really isn't much difference at all between the bags.Pros:-The bags are simple to use and versatile-The color options are great, especially if your use for the bag may end up with the bag falling overboard-The bags will float when sealed properly-No water has been found in my bags yet (but I'd still add extra caution and seal anything you absolutely can't get wet in another plastic bag as well)Cons:-Folding the bag over eliminates some space, which means you need to plan your space utilization carefully if you want a waterproof bag!-The bag is not designed to be submerged for more than a few seconds... it is waterproof when floating (which is what it does). If you force it underwater for too long, the pressure of the water may force some liquid into the bagOverall, I'd say this is a great, CHEAP, and simple product. Take it from someone who's out on the ocean all day: it works!

Okay, I've gotta be real: I'm usually the one people trust to keep stuff safe. So, on my recent rafting trip, I found myself being the guardian of not just my essentials but EVERYONE's valuables. And trust me, that’s a level of responsibility I wasn't quite prepared for. But enter the MARCHWAY Floating Waterproof Dry Bag – and, boy, did it deliver!Here's the deal. This isn't your run-of-the-mill bag. Made from ripstop tarpaulin, it's built to withstand tears, rips, and punctures. It's like the superhero of dry bags. The roll-top closure system? Airtight. Even when we splashed, bumped, and got a bit wild on the water, everything inside stayed bone dry. Phones, wallets, keys – all safe and sound. And that's not just me saying it – everything from phones to towels to a change of clothes stayed dry for my fellow adventurers too.Now, a quick PSA: If you're new to the world of dry bags (like I once was), make sure you get the lowdown on how to seal it properly. I had a rookie mistake with a different bag once, and let's just say, wet socks aren't fun. But once you've got the hang of it, the MARCHWAY bag is a breeze to use.The versatility? Top-notch. It floats, so you don't lose sight of your stuff. Whether you're kayaking, beaching, or climbing snowy mountains, it's got your back (literally, if you wear it like a backpack). And with sizes ranging from 5L to 40L, there's one for every kind of adventurer.In a nutshell? If you're heading outdoors and need to keep your stuff safe, dry, and within reach, the MARCHWAY Floating Waterproof Dry Bag is a no-brainer. It's got the durability, style, and versatility down pat. Happy adventuring, folks! 🛶🏔🌟

Amazing waterproof bag! This purchase makes #2 for me , as we travel to Jamaica with our boys Everything stays completely dry and safe all day . 100% recommend.

I really like this bag. I got the 20L/Flower pattern. It looks good and carries a good amount of stuff - big enough for a towel, food, water bottle, sunscreen. I got it for a day of kayaking. It's easily water resistant. I also took it on a trip to the Caribbean and it was great for both the beach and snorkeling. Almost wish now I had gotten a bigger size, but this size is pretty convenient for most of my needs.

We got one of these bags and the quality and style was so good we bought 3 more. We are very happy with these dry bags and will purchase these if we need more. We have quite a few kayaks and these are great for anything you want to keep dry while in the water

A great budget option. I use it for travelling with shower/bathroom products in my hold luggage. No leakages or problems whatsoever. The color is fun too.

bought nov 22 2022as noted below, i sadly had to cut the shoulder straps off as this was always bought w intention of usage inside my 36l outdoor products hiking backpackwell, this dry bag still works welll as the durable inner gab for my hiking backpackstill keeps contents dry when neededhelps reduce wear/tear on my hiking backpacks rather thin bottomwill buy as a beach bag when i need a beach bag as im surrounded by 'emg8 bag g8 valueoh and it is now juen 13th 2023 as of this review update, daily usage in my backpacknote i have not clipped it shut daily - that only done a couple of times so cannot speak to buckle durability but they seem like your standard heavy duty plastic buckles so i dont see why they would ever failno reason to buy sea to summit brand or similar as this bag is as good albeit far heavier but mabye this brand sells a lighter version/thinner version. agian this bag is made to be a stnadalone dry bag in a kayak etc i think. so much thicker than my 5L sea to summit bag (which has withstood 8 years of use as my 13 inch laoptop bag)Sadly the straps are not removableseriously i am sad about this as they are so thick and well made i was sad to cut them off lolwhy?cuz they are so heavy, so padded, that they added seemingly a half or 2/3 lb to my backpackthis dry bag is perfect for my 36L hiking backpack with just 1 pocket.i put this 40L dry bag in and it def will add durability esp to bottom of my backpack as i carry electronics laptops etc in iti didnt want to cut the straps cuz of how nice n sturdy they seemed but had tothe folding top and closure buckles seem heavy dutythe bag is thick dunno thickness but a couple to seve mm??my sea to summit 5L drybag is prob a 1/3 thick but then again thatbag is meant for inside a backpack or other bag and not as a standalone bag i thik.this orang 40l could easily last by itself - a reviewer in Hi said they've used it for a long time which is why i bought it - they said it lasted beaches salt air etc so i know it can last inside a backpack lolanit is same thickness if not more as my 20L dry bags from Outdoor products - a value brand you can get at walmart whose products all have LIFETIME warranty!!! OP products is also my backpack brand. i have 3 of their bakcpacks. they will always replace your item even years later. i knos cuuze ive done this on 2 items. one was for a frayed chsest strap & other leaking water puch. - point is this 40L orange bag seems as good as OP...will update over time and nope aint gonna fix typos lol

Bought as a Christmas present. My friend loves it

Comes with double straps for use as a backpack. Solid build.

Waterproof as it says and has strong material

I try it few times:, all the time the same result: water inside the bag. Unfortunately, it is not waterproof. Even though I always closed it very carefully, water entered, although not a lot, but enough to ruin what was inside. After the third day, it already started to have cracks. Terrible

We needed an extra for a week's canoe trip when we brought along an extra person. Didn't want to spend a ton of money because probably won't always get used depending on how many people come with us. Worked great. Was surprisingly sturdy and strong.