Apidura Backcountry Accessory Pocket – 4L
The Apidura Backcountry Accessory Pocket (4 L) is an ultra-durable, seam-welded accessory pocket that clips to the Backcountry Handlebar Pack and adds 4 L of storage for weekend trails or bikepacking tours. It weighs 155 g, is made from Dimension Polyant X-PAC VX21 fabric and is compatible with the Backcountry and Expedition Handlebar Packs. It does not function as a standalone product.
Why an accessory pocket – and why this one
Snacks, documents and small electronics are things you want to reach without unpacking the handlebar roll. The Backcountry Accessory Pocket addresses this:
- It adds capacity quickly. It clips securely to the handlebar pack and adds 4 L of storage.
- Contents stay organised. An internal anti-rattle mesh pocket aids organisation, and a bright lining helps when searching for items.
- It stays closed on rough ground. The fold-over velcro closure gives easy access and security over the roughest terrain.
- It is built for the trails. Abrasion-resistant panels and an ultra-durable, lightweight, welded body fabric enhance durability.
- You stay visible. Reflective graphics and an integrated light attachment point increase visibility.
Who is it for?
- Owners of a Backcountry or Expedition Handlebar Pack who need extra storage within easy reach.
- Weekend trail riders and bikepackers who want to keep snacks, a camera, documents or light electronics close at hand.
Key features

Clips securely to handlebar packs
Compatible with Backcountry and Expedition Handlebar Packs.

Secure velcro closure
Provides easy access and security over the roughest terrain.

Integrated light attachment point
For increased visibility.

Ultra-durable, lightweight body fabric
Welded for waterproofing and reinforced for the trails.
Also: an internal anti-rattle mesh pocket aids organisation, and abrasion-resistant panels enhance durability.
Materials & technology
- VX21 – Dimension Polyant X-PAC VX21, a lightweight, high-strength, waterproof fabric with low stretch and good durability.
- Durable – built to last with bespoke fabrics and tested designs that endure the harshest conditions.
- Welded waterproof – RF-welded seams and bespoke fabrics for 100% waterproof, ultra-durable construction.
Specifications
| 4 L (BBF) | |
|---|---|
| Storage | Main compartment; internal mesh pocket |
| Closure | Fold-over with velcro strips |
| Attachment | 3 adjustable nylon straps attach via quick-release buckles |
| Waterproofing | Seam welded – bespoke materials and RF welding create watertight seams |
| Visibility | Reflective graphics; light attachment point |
Care & maintenance
- Spot clean only – treat stains with concentrated dishwashing liquid. Abrasion is not recommended.
Frequently asked questions
Can I use the Backcountry Accessory Pocket on its own?
No. It does not function as a standalone product and is designed to connect to a handlebar pack.
Which handlebar packs is it compatible with?
The Backcountry and Expedition Handlebar Packs.
How is it attached?
Three adjustable nylon straps with quick-release buckles clip it securely to the handlebar pack.
About Apidura
Founded in 2013, Apidura designs bikepacking bags for long-distance and ultra-endurance riding, tested by riders on events such as the Transcontinental Race and the Tour Divide. The range is built around three families: the fully waterproof Expedition series for touring and all-weather bikepacking, the lightweight Racing series for ultra-distance racing, and the rugged Backcountry series for off-road trails.
Every Apidura product comes with a 3-year producer guarantee from the date of purchase, covering the entire product. After that, Apidura can support at-home repair or recommend a trusted repairer.







