Discovery™ Dry Bag

Discovery™ Dry Bag

Ultra-durable, multipurpose dry protection.
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$24.95 - $61.95
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Discovery™ Dry Bag

Made of ultra-durable materials, our versatile and waterproof Discovery Dry Bag features welded construction for lasting performance, plus an updated closure that makes it easy to achieve a tight seal for excellent protection against water, from day floats, overnight kayak trips, or overland expeditions. The Discovery is available in 5L, 10L, 20L, 30L & 50L.
  • Built for the journey: Made of rugged, flexible, and fully waterproof materials designed to withstand frequent and demanding use.
  • Light-colored interior: Significantly eases identification of contents within.*
  • Oval bottom: Stable shape won't easily roll around; it's also easy to store, stack, and pack.
  • Durably constructed: Fully welded seams result in stronger and more durably waterproof construction compared to sewn-and-taped seams.
  • Tight, simple sealing: Updated DrySeal™ roll-top closure makes it easier and more intuitive to achieve an optimal seal.
  • PVC-Free: Materials have a reduced environmental impact over vinyl-coated materials.

    *Note: The light-colored interiors are achieved by using materials with non-dyed white threads that have a clear interior coating and a solid-colored exterior coating. The plaid bags use materials with dyed threads and clear coatings inside and out—they do not have as light of an interior as a solid-colored bag, though still maintain some translucence.

  5 LTR 10 LTR 20 LTR 30 LTR 50 LTR
SKU 09637, 09638, 09639, 09640, 09949 09641, 09642, 09643, 09645, 09646, 09950, 10994 09647, 09648, 09649, 09651, 09652, 09951, 10995 09653, 09654, 09655, 10996 09656, 09657
Color Black, Orange, Olive, Olive Plaid, Orange Plaid Black, Orange, Olive, Blue, Olive Plaid, Orange Plaid, Lime Black, Orange, Olive, Blue, Olive Plaid, Orange Plaid, Lime Black, Orange, Olive Plaid, Blue Black, Orange
Weight (Standard) 6.2 oz 9.7 oz 13.8 oz 1 lbs 1 oz 1 lbs 6 oz
Weight (Metric) 0.18 kg 0.28 kg 0.39 kg 0.50 kg 0.65 kg
Width (Standard) 4 in 5 in 6 in 7 in 9.5 in
Width (Metric) 11 cm 13 cm 15 cm 18 cm 24 cm
Length (Standard) 7 in 8.5 in 10 in 12 in 15.5 in
Length (Metric) 17 cm 21.5 cm 25 cm 30 cm 39 cm
Height (Standard) 10 in 14.5 in 21 in 22 in 22 in
Height (Metric) 25 cm 36 cm 53 cm 55 cm 55 cm
Volume (Standard) 305 cu. in 620 cu. in 1220 cu. in 1831 cu. in 3051 cu. in
Volume (Metric) 5 liters 10 liters 20 liters 30 liters 50 liters
PVC-Free Yes Yes Yes Yes Yes
Closure Updated Dry Seal dual-strip roll-down Updated Dry Seal dual-strip roll-down Updated Dry Seal dual-strip roll-down Updated Dry Seal dual-strip roll-down Updated Dry Seal dual-strip roll-down
Bottom Shape Oval Oval Oval Oval Oval
Protection Level waterproof waterproof waterproof waterproof waterproof
Material(s) 300D 18 oz polyurethane-coated polyester 300D 18 oz polyurethane-coated polyester 300D 18 oz polyurethane-coated polyester 300D 18 oz polyurethane-coated polyester 300D 18 oz polyurethane-coated polyester
What is the difference between "splashproof," "waterproof," and "submersible"?

SealLine products use three ratings to describe water resistance:

  • Splashproof: Withstands light rain and splashes. Only some of our products fall into this category. Suitable for use where light water resistance is sufficient, such as summer backpacking.
  • Waterproof: Withstands quick submersions and will float if dropped in the water. Most of our bags fall into this category and are suitable for canoe, kayak and rafting use where boats may tip, flip or be swamped.
  • Submersible: Withstands 1 meter of submersion for 30 minutes (IP-67 standard). Suitable for use in extreme and prolonged wet situations.

With such ratings, water resistance depends on the user carefully and properly sealing the closure. For roll-top closures, this means a minimum of three tight, wrinkle-free rolls. For zipper closures, the zipper must be completely and properly closed.

What is the difference between polyurethane- and vinyl-coated dry bags?

Our premium polyurethane-coated (aka, PVC-free) dry bags offer significantly greater puncture and abrasion resistance than vinyl-coated dry bags, while also being lighter weight. For example, our PVC-free dry bags weigh approximately 8-14 oz. less than our vinyl-coated dry bags. In addition, the PVC-free polyurethane coatings are less harmful to the environment than vinyl coatings.

Our vinyl-coated dry bags are economical and resistant to punctures, tears, and mildew. They remain pliable at low temperatures and resist cracking.

What is special about the DrySeal™ roll-top closure?

Our exclusive DrySeal roll-top closure is easily identified by its two separate stiffening strips below the opening of a roll-top product. This makes it easier and more intuitive to achieve an optimal seal—for the first “roll” in closing the top, simply fold the top over between the two strips of material, then roll closed at least two more times.

This design also amplifies protection from the elements by adding an additional “virtual” roll.

How do I properly seal a roll-top dry bag?

We recommend a minimum of 3 folds (aka “rolls”) to properly seal a roll-top dry bag. For an optimal seal:

  • a. Make sure the stiff sealing strips are wrinkle-free. Close the dry bag so that the sealing strips are pressed together
  • b. While holding strips together, push down to “burp” out trapped air. Once trapped air has been “burped” out, tightly fold the top over several times so that the roll-top closure has been folded at least 3 times
  • c. Connect the buckle in the direction opposite to the direction the material was folded, or along the sides when side buckles are present
Are the listed dimensions for roll-top dry bags measured rolled or unrolled?
All of the dimensions we list for our roll-top dry bags are the dimensions when the dry bag has been properly sealed (tops rolled down three times and secured).
Why do some of your dry bags have a waterproof purge valve?
These purge valves let you easily vent excess air trapped within a sealed dry bag without compromising water protection. Venting trapped air prevents the bag from “ballooning”, helping it compress and save valuable space. We selectively use these valves on products that may frequently be strapped down and/or compressed and stowed in tight spaces.
Which size dry bag should I choose?

Our dry bags are sized volumetrically in liters. To help illustrate how those volumes translate to real world use, here are some typical things you might put in various sizes of dry bags:

  • 5L = a few meals for two, baselayers, or other small essentials
  • 10L = a down jacket, food for the weekend, or a small sleeping bag
  • 20L (most versatile size) = a typical sleeping bag, a couple changes of clothes, or bulkier gear items like a tent or camp kitchen setups
  • 30L+ = from 30L and up, most items for an overnight trip can fit into one of these sizes
What are welded seams?

Welded seams use radio frequencies (RF) to join two pieces of coated fabric together at the molecular level, effectively bonding them together as one. This strong, reliably waterproof construction method is far superior to sewn-and-taped seams.

With sewn-and-taped seams, two pieces of coated fabric are held together with thread and a piece of protective tape is placed over the threads and seam to provide water protection. A RF welded seam can withstand up to 2x more stress than a sewn-and-taped seam, resulting in a more protective and longer-lasting seam. This is why we use welded seams with all of our dry bags.

What’s the difference between a dry bag and a packing system sack?
  • Dry bags come from the paddlesport world. They are made from heavy-duty materials that withstand the stresses of exposed, demanding use in or around wet, aquatic environments. Dry bags are frequently used by paddlers (e.g., canoe, kayak, raft, SUP), though they are increasingly used on land in circumstances where their durability and protection against the elements are beneficial.
  • Packing system sacks come from the camping/backpacking world and are typically made from lightweight or ultralight materials. They are meant to be put inside a larger pack or bag, providing selective water protection and/or organization for specific items (e.g., sleeping bag or clothing) with minimal overall weight penalty.
How should I clean, maintain, and store my dry bag?

Regularly cleaning and maintaining your dry bag will substantially increase its life. After each use, dry bags should be cleaned and aired out. Dirty bags can be washed with a soapy sponge and rinsed, allowing them to air dry. Store clean dry bags completely dry, inside out. Keep all insect repellents and solvents from making direct contact with dry bags—if contact occurs, wash the bag thoroughly.

For vinyl-coated dry bags, such as our Baja™ dry bags, an occasional wipe down with a vinyl preservative, such as Armor All®, will help maintain the vinyl-coated bag’s suppleness. (Armor All® is an Armor All Products registered trademark.) Use of a vinyl preservative is not necessary for polyurethane-coated (aka, PVC-free) dry bags.

We Believe in What We Build

At SealLine, we take pride in engineering the highest-quality outdoor gear available, and we stand behind everything we make. SealLine gear is built to be exceptionally durable and easily repaired. And we back it up with the best service in the industry, all to keep your gear performing for you—and out of landfills. Visit for more info.

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