Juniper bikepacking bag from Old Man Mountain. 100% Waterproof bikepacking bag.

Juniper Trunk

Name: Juniper Trunk
Brand: OMM
SKU: TRU020
Price: 125.00 USD
Availability: InStock

1 total reviews

Where are you going? Absolutely anywhere with the Juniper Trunk.

This Bikepacking trunk bag is ready for everything. Sunshine or rain, your gear will stay dry and protected in this 100% waterproof TPU fabric trunk with welded seams and Hypalon reinforcements. *Please note the side pocket is highly water resistant but is not a waterproof zipper.

We’ve secured the Trunk to your rack deck with four cam lock strapped buckles to keep it steady and secure.

Our branding is super subtle so you can focus on your adventure and not our logos – just a small tag by the velcro patch.

Patches sold separately.

Product variants

Juniper Trunk

$125.00

Bikes don’t have trunks, but that doesn’t mean they don’t need a trunk bag.

Designed specifically to mount to the deck of a rack, the Juniper Trunk is a simple, versatile way to add a whole lot of useful storage to your bike. Use it on the rear like a traditional rack-top bag, or move it to the front and use it as a handlebar bag alternative. Either way, you get a convenient place to stash extra layers, food, tools, or even an ultralight bivy kit without interfering with your cables or impacting the handling of your bike.

The roll-top closure makes it easy to adjust the volume to whatever you’re carrying while keeping the weather out. The waterproof construction keeps your gear protected when the forecast turns sideways, while the padded base gives the bag some structure and adds a little extra protection for whatever you’ve packed inside.

For the things you want quick access to, a convenient zipper opens to a water-resistant pocket. Snacks, tools, sunscreen, your phone, or whatever else you find yourself reaching for throughout the day right where you need it.

The Juniper is made to work with Old Man Mountain racks, giving you a straightforward way to turn the rack deck into useful, accessible storage. Put it in the front, put it in the back, load it up, and go.

Bikes may not have trunks, but with the Juniper, they can have something even better: a trunk that goes wherever you do.

Close-up of Old Man Mountain Juniper Trunk bag on an Elkhorn rack mounted to an Esker Japhy hardtail.

100% Waterproof

Made from PFAS-free N66 500D Cordura with TPU coating and fully welded construction, you’ll never have to worry about a river crossing or sudden rain again.

Close-up of Old Man Mountain Juniper Trunk mounted to an Elkhorn Rack.

Subtle Branding

You’re out in nature to get away from billboards, not become one. We made our branding one small tag by the velcro. The perfect place for your favorite patches.

Close-up of someone's hand using the silent mounting cams on the Old Man Mountain Juniper trunk bag.

Silent Mounting Straps

Attached with four straps through locking buckles, the Juniper Trunk is ultra secure and rattle free.

Close-up of open Juniper Trunk bag, showing the unrolled closure system.

Roll Top Closure

A simple roll and clip provides waterproof storage that is quick to access and quick to close.

Close-up of the zipper closure on an Old Man Mountain Juniper Trunk bag

Convenient Zipper

An ideal place for your keys, wallet, and phone, or a bike tool. For those quick access essentials you want to grab in a flash, with a water-resistant zipper.

Old Man Mountain Juniper Trunk bag shown in use as a hardtail mountain bike with Elkhorn rear rack moves through the frame, blurring the background.

Padded Base

A foam liner on the bottom of the bag adds protection for your gear and structure to the bag. It also eliminates any noise from items in the bag hitting the rack.

100% Waterproof

Made from PFAS-free N66 500D Cordura with TPU coating and fully welded construction, you’ll never have to worry about a river crossing or sudden rain again.

Subtle Branding

You’re out in nature to get away from billboards, not become one. We made our branding one small tag by the velcro. The perfect place for your favorite patches.

Silent Mounting Straps

Attached with four straps through locking buckles, the Juniper Trunk is ultra secure and rattle free.

Roll Top Closure

A simple roll and clip provides waterproof storage that is quick to access and quick to close.

Convenient Zipper

An ideal place for your keys, wallet, and phone, or a bike tool. For those quick access essentials you want to grab in a flash, with a water-resistant zipper.

Padded Base

A foam liner on the bottom of the bag adds protection for your gear and structure to the bag. It also eliminates any noise from items in the bag hitting the rack.

Full Product Specs

7 Liter capacity.
295 Grams
Fully welded and waterproof construction made from TPU fabric
HypalonⓇ reinforcements at all attachment points are more abrasion resistant and provide extra grip where needed
PFAS/PFC free materials
Roll top enclosure.
Water resistant zipper pocket on the outside.
Minimal branding on velcro patches.
Clip light slot on the back.
Great fitment on all racks with a deck. Perfect fitment for OMM racks.

Measurement chart for Old Man Mountain Juniper Trunk 7L bag with dimensions.

Descending singletrack toward Sisters, Oregon on the OTT700

The Juniper Trunk Bag is a sturdy and simple rack-top bag for off-pavement adventures. Its boxy 7 liter capacity holds a surprising amount of stuff and is perfect for all those small items you reach for often. In my testing it was sturdy, stable, and easy to mount to a wide range of racks. I’ve especially been appreciating the Juniper on my hardtail, where it helps me enjoy full dropper seatpost range and a lighter handlebar load.
— Alissa Bell, Exploring Wild

I treat the Juniper like some contractors treat the back seat of a crew cab truck–I throw everything I might need in there in a jumbled pile. The padded base means my lock never clanks around, even when I’m trying to catch air off curbs on my way to a show. It’s easy to access, even with gloves on, thanks to the one-buckle closure. The zip pocket is nice for valuables, and it’s easy to slip a red blinky light into the included slot. I really appreciate always knowing that my lock, a pair of gloves, spare jacket, and spare light are ready to go in that bag. And, it’s just the right size to drop my helmet into when I’m not riding.
— Cy Whitling, BikeMag

This can be on or off the bike in about 30 seconds or less. It's very quick and easy to install. And as long as you have tightened the straps, the bag is not going anywhere.
— Josh, Keep Smiling Adventures

Included in the Box

Juniper Trunk Bag

What the Trunk?

Bikes don’t have trunks but that doesn’t mean they don’t need a trunk bag. Designed specifically for mounting to the deck of a rack, like the Elkhorn, the Juniper Trunk is a functional and transformative storage solution. Use on the rear like any rack deck pack. Or use it on the front as a handlebar bag alternative where you can stash extra layers, food, tools, or even an ultralight bivy kit without impacting handling or cables.

FAQs

Please read our FAQs page to find out more.

Will the Juniper Trunk fit my rack?

Yes! The Juniper Trunk is designed to sit on top of a rack deck, and it fits Old Man Mountain racks particularly well. Four straps with locking buckles secure the bag to the deck, keeping it stable and quiet as you ride.

If you're using a rack from another brand, check that it has a suitable deck and enough room to route and secure all four straps.

Is the Juniper Trunk waterproof?

The main compartment features fully welded TPU construction, Hypalon reinforcements, and a roll-top closure to keep your gear dry and protected from the elements.

The external zipper pocket is water-resistant, NOT waterproof, so keep anything that absolutely must stay dry inside the main compartment.

What can I carry in the Juniper Trunk?

The Juniper gives you 7L of rack-top storage for the essentials you want close at hand. It's great for food, tools, extra layers, a compact overnight kit, or everyday items you don't want stuffed into your pockets.

Its position on the rack makes it easy to access gear without interfering with handlebar controls or taking up space inside your panniers.

Will the Juniper Trunk rattle or bounce around on rough terrain?

It's designed to stay secure and quiet! Four straps with locking buckles hold the bag to your rack deck, while a padded base protects your gear and helps prevent items from knocking against the rack.

Make sure all four straps are tensioned evenly and check the buckles before heading out on rough trails.

Can I organize smaller items inside the Juniper Trunk?

Yes! The external water-resistant zipper pocket is handy for quick-access essentials like your keys, wallet, phone, or a multitool. For more organization inside the main compartment, add our Pinecone Pouch, which hangs inside the bag to keep small items easy to find.

You can also use the rear light slot to help keep a compatible clip-on light visible when your trunk is mounted on the bike.

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4 stars: 1 (100%)
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1 star: 0 (0%)

L

I dig the bag quite a lot. Great for dragging takeout to my favorite spot or hauling a sixer to the trail. Not so great for just tossing my lock in - the cam locks don't always stay secure for a rowdy time. It has a tendency to develop a lean and that can push the camlocks down in such a way that the straps become free to interact with your spokes and hopefully alert you. The other sides straps and the roll top mean stuff stays in and on the bike it just will flop about and hit your butt.

Juniper Trunk

100% Waterproof

Subtle Branding

Silent Mounting Straps

Roll Top Closure

Convenient Zipper

Padded Base

100% Waterproof

Subtle Branding

Silent Mounting Straps

Roll Top Closure

Convenient Zipper

Padded Base

Full Product Specs

Included in the Box

What the Trunk?

FAQs

Customer Reviews