Lash to kayaks, bikes and 4WDs with confidence, or add a Dry Bag Sling for comfortable hands-free carrying. Big River Dry Bags are a durable and abrasion resistant option that uses a strong 420D nylon fabric. If your idea of outdoor recreation involves rugged water sports like kayaking, canoeing, rafting, or motorcycle touring, they are the perfect storage bags to keep your gear dry. A white interior laminate affords greater visibility, and lash loops allow secure stacking or attachment to watercraft, motorcycles and other equipment. The hypalon non-wicking roll-top closure keeps water out, and the Field Repair Buckles can be replaced in seconds with just a Philips screwdriver. It also was designed with an oval base to save space when packing and prevent it from rolling away.
Lash to kayaks, bikes and 4WDs with confidence, or add a Dry Bag Sling for comfortable hands-free carrying. Big River Dry Bags are a durable and abrasion resistant option that uses a strong 420D nylon fabric. If your idea of outdoor recreation involves rugged water sports like kayaking, canoeing, rafting, or motorcycle touring, they are the perfect storage bags to keep your gear dry. A white interior laminate affords greater visibility, and lash loops allow secure stacking or attachment to watercraft, motorcycles and other equipment. The hypalon non-wicking roll-top closure keeps water out, and the Field Repair Buckles can be replaced in seconds with just a Philips screwdriver. It also was designed with an oval base to save space when packing and prevent it from rolling away.
Lash to kayaks, bikes and 4WDs with confidence, or add a Dry Bag Sling for comfortable hands-free carrying. Big River Dry Bags are a durable and abrasion resistant option that uses a strong 420D nylon fabric. If your idea of outdoor recreation involves rugged water sports like kayaking, canoeing, rafting, or motorcycle touring, they are the perfect storage bags to keep your gear dry. A white interior laminate affords greater visibility, and lash loops allow secure stacking or attachment to watercraft, motorcycles and other equipment. The hypalon non-wicking roll-top closure keeps water out, and the Field Repair Buckles can be replaced in seconds with just a Philips screwdriver. It also was designed with an oval base to save space when packing and prevent it from rolling away.
Lash to kayaks, bikes and 4WDs with confidence, or add a Dry Bag Sling for comfortable hands-free carrying. Big River Dry Bags are a durable and abrasion resistant option that uses a strong 420D nylon fabric. If your idea of outdoor recreation involves rugged water sports like kayaking, canoeing, rafting, or motorcycle touring, they are the perfect storage bags to keep your gear dry. A white interior laminate affords greater visibility, and lash loops allow secure stacking or attachment to watercraft, motorcycles and other equipment. The hypalon non-wicking roll-top closure keeps water out, and the Field Repair Buckles can be replaced in seconds with just a Philips screwdriver. It also was designed with an oval base to save space when packing and prevent it from rolling away.
Last updated at 03/21/2026 12:03:23
Sea To Summit - Big River 13L Dry Bag - Surf the web - UK One
Delivery $29
Sea To Summit Big River Dry Bag - SUPER SALE-Surf the Web-13L
Delivery between Wed – Fri $9.95
Sea To Summit Big River Dry Bag - SUPER SALE-Surf the Web-13L
Delivery between 26 Mar – 3 Apr $9.95
Big River 13L Waterproof Dry Bag - Sea to Summit | Bay Sports Surf the Web Blue
Delivery between 24 Mar – 1 Apr $9.99
Sea to Summit Big River Dry Bag 13L - Surf the Web
Delivery between 25 Mar – 2 Apr $9.90
Sea To Summit Big River HD Heavy Duty Waterproof Dry Bag, 13L / Surf The Web
Delivery $11.99
Big River Dry Bag Surf the Web / 13L
Delivery between 26 Mar – 3 Apr $9.95
SEA BIG RIVER DRY BAG 13L W23 SURF THE WEB NS
Delivery between 27 Mar – 2 Apr $9
Sea to Summit Big River Dry Bag 13L Surf the Web
Delivery between 26–30 Mar $9.50
Sea to Summit Big River Dry Bag 13 L – Rugged Waterproof Storage for Adventure & Travel Blue
Delivery $14.90
originally posted on seatosummitusa.com
It's hard to find a drybag that is both durable and packable. Most durable dry-bags are a thick PVC material; those are great but don't pack down small. This 65L bag manages to be incredibly durable, and rolls up as small as my other 15L dry bags.Everything else about the bag is designed intelligently: great tie downs, oval shape, replaceable buckles. I've owned one for a few years and just bought a second. My first one is barely showing signs of use; I use it at least monthly on a SUP (fits an iSUP pump and carry bag really well, plus any extra clothes and snacks for the paddle)
originally posted on seatosummitusa.com
I bought 6 of the 65 L Big River Dry Bags to hold all my gear for an extended wilderness river rafting trip in southern Utah. The bags were the perfect size and packed/stacked very well. There were no major rapids on the river and the bags were simply strapped down on the back of the raft. For such a long trip in a sandy environment, I think the Hydraulic Dry Bag would have been a better choice. Although they held up pretty well, moving camp each day and loading and unloading every morning and night sure took its toll on the bags. The temperature was also 100+ degrees and the loops on the side for strapping the bags down simply peeled off the bags. It looks like they were just held on with adhesive and the heat melted the adhesive and the loops became worthless. ... MoreI bought 6 of the 65 L Big River Dry Bags to hold all my gear for an extended wilderness river rafting trip in southern Utah. The bags were the perfect size and packed/stacked very well. There were no major rapids on the river and the bags were simply strapped down on the back of the raft. For such a long trip in a sandy environment, I think the Hydraulic Dry Bag would have been a better choice. Although they held up pretty well, moving camp each day and loading and unloading every morning and night sure took its toll on the bags. The temperature was also 100+ degrees and the loops on the side for strapping the bags down simply peeled off the bags. It looks like they were just held on with adhesive and the heat melted the adhesive and the loops became worthless. Overall the Big River dry bags performed well, but I wish I would have spent a bit more money for the Hydraulic Dry Bags.
originally posted on seatosummitusa.com
4 Star Product 1 star for deceptive marketing specs. Purchased a 5L to keep my sleeping bag dry and water proof. Way to small. I would have expected the specs listed to be the usable space. The Listed size are of an open flat bag. USELESS INFORMATION! My fault for not doing more research. Sea to Summits fault for not providing more usable data. Beware! Your going to loose 5" on a 5L when you roll it closed. The bag will only be 10" long.
| Closure | Non-wicking hypalon roll-top closure |
| Repair Buckle Size | 3/4in / 20 mm (2-Pin) |
| Shape | Oval base |
Sea To Summit - Big River 13L Dry Bag - Surf the web - UK One
Delivery $29
Sea To Summit Big River Dry Bag - SUPER SALE-Surf the Web-13L
Delivery between Wed – Fri $9.95
Sea To Summit Big River Dry Bag - SUPER SALE-Surf the Web-13L
Delivery between 26 Mar – 3 Apr $9.95
Big River 13L Waterproof Dry Bag - Sea to Summit | Bay Sports Surf the Web Blue
Delivery between 24 Mar – 1 Apr $9.99
Sea to Summit Big River Dry Bag 13L - Surf the Web
Delivery between 25 Mar – 2 Apr $9.90
It's hard to find a drybag that is both durable and packable. Most durable dry-bags are a thick PVC material; those are great but don't pack down small. This 65L bag manages to be incredibly durable, and rolls up as small as my other 15L dry bags.Everything else about the bag is designed intelligently: great tie downs, oval shape, replaceable buckles. I've owned one for a few years and just bought a second. My first one is barely showing signs of use; I use it at least monthly on a SUP (fits an iSUP pump and carry bag really well, plus any extra clothes and snacks for the paddle)
I bought 6 of the 65 L Big River Dry Bags to hold all my gear for an extended wilderness river rafting trip in southern Utah. The bags were the perfect size and packed/stacked very well. There were no major rapids on the river and the bags were simply strapped down on the back of the raft. For such a long trip in a sandy environment, I think the Hydraulic Dry Bag would have been a better choice. Although they held up pretty well, moving camp each day and loading and unloading every morning and night sure took its toll on the bags. The temperature was also 100+ degrees and the loops on the side for strapping the bags down simply peeled off the bags. It looks like they were just held on with adhesive and the heat melted the adhesive and the loops became worthless. ... MoreI bought 6 of the 65 L Big River Dry Bags to hold all my gear for an extended wilderness river rafting trip in southern Utah. The bags were the perfect size and packed/stacked very well. There were no major rapids on the river and the bags were simply strapped down on the back of the raft. For such a long trip in a sandy environment, I think the Hydraulic Dry Bag would have been a better choice. Although they held up pretty well, moving camp each day and loading and unloading every morning and night sure took its toll on the bags. The temperature was also 100+ degrees and the loops on the side for strapping the bags down simply peeled off the bags. It looks like they were just held on with adhesive and the heat melted the adhesive and the loops became worthless. Overall the Big River dry bags performed well, but I wish I would have spent a bit more money for the Hydraulic Dry Bags.
4 Star Product 1 star for deceptive marketing specs. Purchased a 5L to keep my sleeping bag dry and water proof. Way to small. I would have expected the specs listed to be the usable space. The Listed size are of an open flat bag. USELESS INFORMATION! My fault for not doing more research. Sea to Summits fault for not providing more usable data. Beware! Your going to loose 5" on a 5L when you roll it closed. The bag will only be 10" long.
I have the 20 L and 35 L bags. I used the 35 L bag on top of my rear bike rack for touring/bikepacking on backroads in Scotland. I used the 35 L bag as it still fit on top of the rack. The 20 L would have held my stuff - barely. Having the extra space in the 35 L made packing easier though. Any extra space could be cinched down easily. With the Hypalon side loops I could secure the bag really well to the rack. The roll top closure snapped around my seat post for further stability. The oval profile of the bag made for a degree of stability on the carrier as well. The cloth was light enough for biking and heavy enough to take abuse - spot on. So, what's Sea to Summit's opportunity? Well - more exterior loops would make attaching elastic webbing possible to stuff a ... MoreI have the 20 L and 35 L bags. I used the 35 L bag on top of my rear bike rack for touring/bikepacking on backroads in Scotland. I used the 35 L bag as it still fit on top of the rack. The 20 L would have held my stuff - barely. Having the extra space in the 35 L made packing easier though. Any extra space could be cinched down easily. With the Hypalon side loops I could secure the bag really well to the rack. The roll top closure snapped around my seat post for further stability. The oval profile of the bag made for a degree of stability on the carrier as well. The cloth was light enough for biking and heavy enough to take abuse - spot on. So, what's Sea to Summit's opportunity? Well - more exterior loops would make attaching elastic webbing possible to stuff a jacket without going into packs. Some loops close to the roll top could make it easier to make a dedicated seat post attachment as well. A more squared off profile (rather than oval) with a flat bottom would make racking even better. I see enough of these bags on bikes already, that a dedicated bike model would work great. A volume less than 35 L and more than 20 L would work great (27.5 L I guess). No matter what you use this bag for, it's a superior outdoor product as is.
This is a really nice bag: think of a regular lightweight dry bag amped up! First of all, this bag will keep your gear dry, just like all of Sea to Summits other lightweight dry bags.Whereas the heavyweight bags are polyurethane, the bulk of my bags require water resistance, not heavy-duty immersion. This bridges the gap between a "lightweight" bag and that heavy-duty bag. Why is this important? I've found abandoned lightweight bags in the field with holes and rips; this bag is made from a heavier-weight ripstop nylon similar to what you might find on a high-end daypack for hiking. Except that its waterproof, something that my day pack lacks!But more than that, I really appreciate the molle-style lash points to secure this bag to my pack, to my kayak, to whatever ... MoreThis is a really nice bag: think of a regular lightweight dry bag amped up! First of all, this bag will keep your gear dry, just like all of Sea to Summits other lightweight dry bags.Whereas the heavyweight bags are polyurethane, the bulk of my bags require water resistance, not heavy-duty immersion. This bridges the gap between a "lightweight" bag and that heavy-duty bag. Why is this important? I've found abandoned lightweight bags in the field with holes and rips; this bag is made from a heavier-weight ripstop nylon similar to what you might find on a high-end daypack for hiking. Except that its waterproof, something that my day pack lacks!But more than that, I really appreciate the molle-style lash points to secure this bag to my pack, to my kayak, to whatever mounting point I might require.My only wish is that this came in more colors, but maybe my wish will come true in the years to come.You can't go wrong with this well-made bag!
I originally bought some of the 13 liter and 1 20 liter bag for packingon a trip where my bag/luggage would be open to the elements in my truck bed. Find out these work great as organizers for regular packing in a duffle bag. I also camp so I bought another 20l in bright orange for my go to emergency kit In my truck. It will carry my down bag and jacket matches and I other emergency gear.I like that these are light as I have had multiple shoulder surgeries and the straps help me. Looking into packing some of my camping gear in multiple bags so I can have them color coded for different equipment. Thanks sea to summit for done great bags.
Really disappointed in the performance of this "dry bag". I just returned from a 6 day canoe trip (BWCA), and this was the only bag that really didn't hold up! With multiple portages throughout our trip, we carried the bags over various terrain but with minimal abrasion from rocks or the ground. The dry bags made of "500-denier waterproof, polyester PVC" performed great - no issues with any of them. My inexpensive dry bags made of "190D diamond ripstop polyester" did pretty well. I was very surprised to see by the end of the trip, this bag's 420D nylon fabric TPU did not hold up well - the sides did fine, but the black bottom was easily damaged by incidental abrasions with rocks or the ground and developed a small tear and lots of small holes. Really unacceptable ... MoreReally disappointed in the performance of this "dry bag". I just returned from a 6 day canoe trip (BWCA), and this was the only bag that really didn't hold up! With multiple portages throughout our trip, we carried the bags over various terrain but with minimal abrasion from rocks or the ground. The dry bags made of "500-denier waterproof, polyester PVC" performed great - no issues with any of them. My inexpensive dry bags made of "190D diamond ripstop polyester" did pretty well. I was very surprised to see by the end of the trip, this bag's 420D nylon fabric TPU did not hold up well - the sides did fine, but the black bottom was easily damaged by incidental abrasions with rocks or the ground and developed a small tear and lots of small holes. Really unacceptable for a dry bag to of this size and description to not be more durable. The product description says it's "durable, strong and abrasion resistant..." and "...great choice for rugged watersports such as kayaking, canoeing and whitewater rafting" - it's simply NOT. They are lightweight, maybe suitable for lining INSIDE a pack or within a kayak hatch, or for rain protection for bikepacking. They are not suitable for direct exposure to any abrasion, the holes from the slightest abrasion means they may stand up to rain but not any real / consistent exposure. I'm a former rafting guide, kayak trip leader, and have experience in multi-day kayak and canoe camping trips. I expected better from the Sea to Summit brand and am puzzled by all of the positive reviews.
This is a really sweet dry bag! It feels super durable and the 1KN rated lashing straps are a really nice touch. Seems like it will hold up forever! I got a 13L bag which is perfect for smaller stuff and keeping things organized in larger dry bags. Took it out on the river this past weekend and it got splashed. Kept everything dry and safe! Highly recommend this bag!
The Big River are my go to dry bag gear for kayak/canoe camping. I tried another brand to get some perspective and returned it right away. I have several sizes including the 5l, 35l and now 20l. I previously got a 35l clear rubber/plastic one, but the plastic creates friction that makes it hard to slide in the dry hatch. The big river bag is easier to work with. It’s durable and the lashes on the outside are handy for a number of purposes. I’ll probably get another 20l. The 35l fits my sleeping kit contents. The 20l for food and clothing. 5l for flashlight, knife, lighters, toiletries.
These Big River Dry Bags are awesome. I used them on a River kayak paddle for three days. Always dry and with great confidence the contents would stay dry. The various sizes are perfect for different gear, clothes and food. A couple we on top under the bungee cords. Clips, straps and closures also very useful. Great product.
| Closure | Non-wicking hypalon roll-top closure |
| Repair Buckle Size | 3/4in / 20 mm (2-Pin) |
| Shape | Oval base |
