MARCHWAY Floating Waterproof Dry Bag Backpack 5L/10L/20L/30L/40L, Roll Top Sack Keeps Gear Dry for Kayaking, Rafting, Boating, Swimming, Camping, Hiking, Beach, Fishing
Condition: New
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Tuesday, Dec 16
Size: 30L
Color: Digital Camo
Features
- Tarpaulin
- Imported
- Built to Endure: This drybag features a 500D polyester mesh core laminated between 2 layers of PVC, delivering exceptional tear and abrasion resistance while staying flexible year-round. Its ruggedness is reinforced with expertly welded seams, heavy-duty buckles, sturdy straps and robust stitching. Designed to withstand scrapes against rocks and prolonged harsh conditions, it keeps your gear protected, dry and secure on every water adventure.
- Superior Waterproofing: The convenient roll-top seal ensures complete watertightness. Simply spread the bottom open to capture more air, roll the top down 3 to 5 times and buckle it shut. This traps air to block water, making the bag float, while the round bottom speeds up air capture. It keeps contents dry in all common wet conditions from rapids and waves to snow and sand, though not during extended full submersion.
- Multiple Sizes & Colors: A full range from 5L to 40L suits any activity. 5L/10L bags are ideal for light trips and feature an adjustable, removable shoulder strap for cross-body carry. For heavier loads, 20L to 40L models have backpack straps for even weight distribution. All sizes fold into a compact pouch for easy storage. Choose from a spectrum of colors, from classic darks to vibrant brights, for personal style and easy spotting.
- Stays Afloat & Secure: When properly sealed and not overloaded, the dry sack floats prominently on the water, ensuring your gear is visible and quick to retrieve. For added security, the reinforced D-ring and strap allow you to fasten the bag to your boat or kayak. This keeps your belongings within reach to prevent loss, giving you peace of mind to fully enjoy the thrilling outdoors.
- Versatile Utility: Engineered for reliable waterproof protection and rugged durability, this bag is essential for any aquatic adventure or rainy day. It is perfectly suited for water sports like paddling, sailing, canoeing, surfing, river tubing, or trips to the water park or beach. When rain arrives, it also serves as a dependable bag for traveling, climbing and hunting, keeping your gear dry in any weather.
Item Package Dimensions L x W x H: 14.4 x 5 x 1.5 inches
Package Weight: 0.61 Kilograms
Item Weight: 0.66 Pounds
Brand Name: MARCHWAY
Model Name: Dry Bag
Color: Digital Camo
Material: Polyvinyl Chloride (PVC)
Suggested Users: Unisex
Manufacturer: MARCHWAY
Part Number: WDB30LDCAMO
Style: Backpack
Size: 30L
Date First Available: February 18, 2018
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Dec 16
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 20L
Color: Bright Yellow
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 bag Overall, 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!
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Reviewed in the United States on May 25, 2018 by Amazon Customer
Size: 20L
Color: Bright Yellow
These are fantastic! Easy to use and room to spare. My friend even used it as a "floatie" when we went to a very deep natural spring in Florida. Helpful hint: Don't buy a color that will be hard to visually see incase your tow line comes loose and you have to get in the water to retrieve the bag. I purchased the neon yellow with blue lettering-very easy to spot!
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Reviewed in the United States on October 24, 2025 by Dana Campbell
Size: 10L
Color: Orange
This MARCHWAY dry bag is a lifesaver! We took it on a 12-hour river float trip, and it performed flawlessly. We were constantly getting splashed and even flipped over, so the bag was completely soaked on the outside for most of the day. Despite the relentless water, everything inside—our phones, keys, and snacks—stayed bone dry. The quality of the material feels very durable, and the roll-top closure with the buckles is incredibly secure. It gave me total peace of mind knowing our valuables were safe. I wouldn't do another water-based trip without it. Highly recommend!
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Reviewed in the United States on September 6, 2025 by mason55
Size: 10L
Color: Light Blue
Wonderful bag. It kept all of our food dry on our float trip! Very sturdy.
Reviewed in the United States on August 19, 2025 by Mary Bennett
Size: 10L
Color: Teal
The bag quality is great! It is made of a thick material that folds over easily. I have brought out 32oz hydroflasks, food, and valuables (phone, car keys, wallet), and it does not get wet. I enjoy taking this out on my paddle board because you can strap it to the cables and won't have to worry about it falling off. My only complaint would be that it is pretty small when you roll it down. Instructions state that you should roll it down 3-5 times, and after doing this, much of the volume is lost. I purchased a 10L, and honestly, wished I had purchased a bigger size. This is just big enough to carry 1 32 oz bottle, a few snacks, wallet, phone, and keys. That's probably as much as I can fit.
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Reviewed in the United States on July 26, 2023 by Marcie
Size: 10L
Color: Bright Yellow
Works great. I have used it in ocean while snorkeling, in lake while swimming, kayaking, for backpacking to haul and store water. Some threads holding the bottom piece to the cylindrical sides are fraying, they are partially encapsulated in the bag's plastic material and the bottom and side pieces are also welded together, so not sure what's going to happen when the threads wear through, possibly nothing. I'm very careful about not rubbing the bottom of the bag, so the threads must be delicate for outdoor use. I suspect they were intended to be fully encapsulated in the plastic. The bag material itself is very heavy duty. I have no concerns about it's durability. Everyone needs to figure out the sizing themselves. 10L barely fits my running shoes, a shirt and small towel. For the water hauling and storage roles, the bag does leak a bit from the folded top when carrying sloshing water for extended time. In the water storage role, the bag is very prone to tipping over. The plastic material is very temperature sensitive- it is stiff when cold water is added, then softens as the cold water warms. So initially the bag remains upright and very stable, but an hour later it will collapse. I think water storage is an off-label use so I can't hold it against the product.
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Reviewed in the United States on October 17, 2025 by Jeff