100% Waterproof

Made from TPU fabric with HypalonⓇ reinforcements, fully welded seams, and a roll top enclosure. You can be fully confident that your gear will remain dry and protected, even if you don’t quite make that stream crossing.

5 Liter Capacity

5L is perfect for a sleeping bag, sleeping pad, or cook kit with a little space to spare. The 5L capacity is measured while still rolling the closure three times.

A mountain biker in motion on a dirt trail, wearing a gray helmet, light gray t-shirt, black pants, and bright neon yellow gloves, with a blurred forest background.

All Terrain Ready

Old Man Mountain bags are built for whatever riding you want to take on. Whether rowdy shredpacking or traversing around the world, they are ready for anything.

Secure Mount

Simply thread a cargo strap through the slots on the bag front and attach securely to your favorite rack.

Rear shot of a gravel bicycle with drop handlebars and rear rack, loaded with Hemlock and dry bags, photographed outdoors against a rocky, forest-floor background.

PFAS/PFC free

The only we want to leave behind are tire tracks and memories made along the way. Adventure with confidence knowing all OMM bags are made without PFAS/PFC materials.

Old Man Mountain Dry Bags in a studio environment

Even Compression

Frame sheet on the front of the bag ensures even compression.

Full Product Specs

  • 5 Liter capacity
  • Fully welded and waterproof construction made from TPU fabric
  • HypalonⓇ reinforcements are more abrasion resistant and provide structure to the bags
  • Frame sheet on the front of the bag ensures even compression
  • PFAS/PFC free materials
  • Roll top enclosure is easy and reliable
  • 147 grams

Included in the Box

Single 5 Liter Dry Bag

A gravel bicycle with drop handlebars and rear rack, loaded with Hemlock and dry bags, photographed outdoors against a rocky, forest-floor background.

For Bikepackers, By Bikepackers

We don’t just make the things bikepackers need, we use our gear all over the world. From a trip down the Continental Divide to shredpacking in Oaxaca to a simple overnighter along the Deschutes river, just a short ride from the office, we are bikepackers.

That’s why we made the 5L Dry Bag with folks like us in mind. With strap loops ideally spaced for cargo cages, and a frame sheet to ensure even and secure compression, we’re absolutely confident this is the best dry bag available for bikepacking.

FAQs

Please read our FAQs page to find out more.

How is the 5L Dry Bag different from the 5L Hemlock with FLiP?

Both bags offer 5L of waterproof storage, but they use different attachment systems.

The 5L Dry Bag is designed for traditional cargo cages and straps, while the Hemlock with FLiP uses our quick-detach mounting system.

The Dry Bag is a great choice if you prefer a lightweight, straightforward setup or already have compatible cargo cages on your bike.

What can I fit inside a 5L Dry Bag?

Five liters is a useful amount of space for compact bikepacking essentials. Think a sleeping bag, sleeping pad, cook kit, spare layers, or other gear you want to keep protected on the trail.

The capacity is measured with the roll-top closure rolled three times, so pack with enough room left to close it properly.

Will the 5L Dry Bag fit my cargo cage?

The bag is designed for bikepacking and has strap loops spaced to work well with cargo cages. Its front frame sheet helps distribute compression evenly, keeping your load tidy and secure instead of letting the bag bunch up under the straps.

Use compatible cargo straps and make sure the bag is firmly secured to your cage before riding.

Is the 5L Dry Bag completely waterproof?

Yes! The bag uses fully welded TPU fabric, a roll-top closure, and Hypalon reinforcements to protect your gear from rain and trail spray. The reinforced areas also improve abrasion resistance where the bag contacts your cargo cage.

For waterproofness, be sure to roll the closure down a minimum of three times and secure the buckle before heading out.

Can I use the 5L Dry Bag on the front or rear of my bike?

Yes, provided you have a suitable cargo cage and enough clearance. The bag's compact 5L size makes it useful for carrying gear on a fork or another compatible cage mounting location.

Check the clearance around your wheel, fork, frame, and other components, and make sure the cage and mounting points are rated for your intended load.

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