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Rju AIR | 18L Modular Daypack

A fully modular stealthy backpack to transport/pack your all your gear in safety from the elements.

*Limited AIR Launch Promotion: Free Shallow Small ICU (79.99 Value) with purchase of Rju AIR - Available while supplies last!

$ 99.99

PRODUCT HIGHLIGHTS
  • 18 liter Modular Weatherproof Daypack
  • Mission Built & Purpose Driven: 2,000+ hours Ethnographic field validation
  • Adaptive: ICU (Interchangeable Camera Units), Accessories, GateKeepers

The 18-liter f-stop Rju (Ri-joo - ऋजु - Simple) is the definition of KISS: Keep it Super Simple! The Rju AIR starts with superior materials: DuraDiamond HT Nylon, Bloom Carbon-Neutral TPE Foam, Waterproof TPU S-Type Woven Zippers, and constructed using precision Laser Cut & RF Welded sub-panels, ultra-sonic finished zippers and webbing, computer-automated sewn key-connections. Material Science & World Class Construction create the foundation for the Rju AIRs uncomplicated design, however 2000+ hours of Ethnographic product research (validation from a diverse group of 115+ individuals on 950+ adventures) make the Rju AIR the perfect stealthy pack to keep your gear safe and secure in every situation desert, rainforest, subway, or the grocery store.

SKU: a1300 Category: Tags: , ,
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  • Modular transportation/pack ecosystem: Endless combinations of ICU (Interchangeable Camera Units), Accessories and External Attachments: GateKeeper System
  • FlyWISE™: Quick & Easy to remove the ICU from the Rju AIR during Check-in/Boarding for Gate-Agents who are strict about CarryOn size / weight!
  • Extra Durable Airflow Mesh coated Die-Cut ventilated airflow Bloom Carbon-Neutral TPE foam Back Panel & ergonomic Shoulder Straps reduces heat and moisture
  • DuraDiamond® High-Tenacity Rip-Stop PFC Free Nylon is durable and waterproof (20,000++ mm rated) to block weather and environmental elements
  • Heavy-Duty YKK® Zipper back panel access for safe and secure fast-access to camera gear; Large Waterproof TPU S-Type Welded "U" Zipper Top Access for extra gear and accessories
  • Interchangeable Camera Unit (ICU) System: works best with Small & Medium Shallow ICU Other Depths & Sizes work with Rju AIR.
  • 4 GateKeeper expansion attachment points to extend modular functionality
  • Engineered for Serious Adventure & Travel Visual Storytellers by Visual Storytellers - Product Design & Development Process with Ethnographic field research, KANO assessment, and Validation.
  • D4EA brings Design Thinking to the entire Product Journey (Cradle to Grave) to minimize the Total Environmental Impact. CO₂e footprint: 7.8kg | Offset by Walk/Bike 82.11km instead of Driving
  • Best Use: Adventure & Travel Photography
  • Style: Backpack
  • Total Volume: 18L
  • Width: 30CM / 11.8"
  • Height: 43CM / 16.9"
  • Depth: 13CM / 5.1"
  • Minimum Product Weight (Pack Only): 0.645KG
  • Elemental Protection: IP55 Rating
  • Number of Exterior Pockets: 1
  • Primary Material: DuraDiamond® - Laser Cut & RF Welded
  • Gender: Unisex
  • Packaging: D4EA Step-4 Packaging: Compostable (Home) Plant single-use
  • Warranty: Limited Lifetime + Repair + 🆙PACK

COLORS

FEATURES

ICU COMPATIBILITY

VERSATILE DESIGN

Flywise

See What Our Customers Are Saying

Customer Reviews
4.5 Based on 8 Reviews
5 ★
63% 
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Filter Reviews:
f-stop Rju AIR | 18L Modular Daypack Reviewf-stop Rju AIR | 18L Modular Daypack Reviewf-stop Rju AIR | 18L Modular Daypack Reviewf-stop Rju AIR | 18L Modular Daypack Review
06/05/2025
I recommend this product

Great Small pack for day trips

Absolutely recommend this pack for those days out where you don't need all you gear. Small, tidy and inconspicuous it doesn't look like a camera bag at all. I use mine with the medium ICU, but the small would equally be useful. Used it to carry my Fuji XH2, 50-140, 56 & 23, along with extra batteries and strap. Had room to spare too. If you didn't want to take more gear check out my picture for all the gear you can fit. Also, Spring Lake blue is the colour to go for!

JM
J M.
United Kingdom United Kingdom
f-stop Rju AIR | 18L Modular Daypack Review
25/04/2025
I recommend this product

Perfect gear backpack to use under-sit in air plane

I’ve used this backpack to carry my gear on my last est trip to Mexico ,man’s it fit everything that I needed to give life to my products , was perfectly to put it under-sit on the airplane . I could fit a mavic air 3s, Sony a74 plus two lenses , plus batteries and filters .

FJ
Fabio J.
Italy Italy
24/04/2025

Rju Air with Leica SL3,14-24,24-70.70-20

perfect Kombination with my basic equipment !

AS
Andreas S.
AT AT
05/04/2025

Nearly perfect

If this bag has a water bottle pocket, it would be perfect for this size.

JW
John W.
US US
01/04/2025

Perfect for me

I used it when I wanted to travel light, for small photographic equipment, my sketchbook and pencils, and documents. Perfect!

MB
Martina B.
IT IT
17/03/2025
I recommend this product

Simple Bag.

F-Stop touts a 'keep it super simple' ethos for this bag, but also claims to have done "2000+ hours of Ethnographic product research (validation from a diverse group of 115+ individuals on 950+ adventures)." It's thus odd to me to have obvious missing features, like a side pocket for a water bottle or other little QoL improvements. It's possible to be *too* simple (especially for a bag at this price point), and have elegant design without compromising features. I would've hoped those 2,000 hours of research would've revealed as much, as other camera bag makers combine clever design/feature sets with simplicity pretty well. It's still a nice bag that I recommend, and I'd buy a v2 of this bag that iterates on it a bit. Maybe it just needs 4,000 hours of ethnographic product research.

T
Tom
United States United States
18/03/2025

f-stop

We appreciate your feedback and your support of the Rju 15L! The Rju was designed as a cost-effective, stripped-down option for short trips, focusing on essential functionality without added bulk. The goal was to create a lightweight, minimal pack that meets the needs of photographers who prefer a compact setup for quick outings. For those needing a more feature-rich pack with additional storage and design elements for longer hikes and carrying more gear, our Mountain Series offers a range of options tailored for that purpose. That said, we always value feedback and continuously refine our designs, so we’ll take your thoughts into consideration for future iterations. You can also use the 45 day trial period and return the pack for a refund. Thanks again for the feedback.

12/03/2025

Buona qualità dei materiali, ma troppo "basico"

Uno zainetto semplice semplice. L'unica cosa che alza un po' la media è la qualità dei materiali, ma per il resto è decisamente troppo... poco.

SP
Stefano P.
IT IT
12/03/2025

f-stop

Hi Stefano, Thanks for the feedback. The intention behind the Air series is simplicity and light weight. For the opposite, you should try the Mountain series, they are very technical and full of features. You are welcome to reach out to our live chat and we can arrange replacing the RJU for the Ajna DuraDiamond. You'll just need to cover the price difference of 250e.

24/01/2025
I recommend this product

Minimalistic. My new daily driver.

The Rju AIR is my new daily driver. The bag is super light, yet very durable. With 18 L of volume the size is the sweet point for an EDC bag, and it instantly changed to my daily photography backpack when I use it with my micro tiny ICU, it still comes with plenty of space for other daily packings. The front admin pocket is large and very useful too. I just wish it can comes with a small mesh pocket for water bottle on its side. I am super happy with the Rju AIR!

S
Sam
HK HK

NOT EVERY ADVENTURE IS EPIC, BUT EVERY MOMENT COUNTS

f-stop AIR Series: Purpose-built for Visual Storytellers with a Mission
Feather Icon Black
Lightweight At It's Core
DuraDiamond Icon
DuraDiamond Construction
Mountain Icon Black
Build For The Elements
Everyday. Lighter.
MODULAR BY DESIGN

f-stop pioneered the ICU (Interchangeable Camera Unit) from the earliest days of our company and the very concept of our products are centered around protecting and organizing the gear that matters to you.  Our modular transportation/pack ecosystem delivers endless combinations of ICU (Interchangeable Camera Units), Accessories and External Attachments: GateKeeper System.

FOR VISUAL STORYTELLERS

f-stop AIR products are engineered for serious adventure & travel visual storytellers by visual storytellers.  Our product design & development process with uses ethnographic field research, KANO assessment, and validation.  The Rju is designed with lightweight and comfortable usability in mind for all adventurers.  This over-engineered modular "simple" daypack uses premium materials and construction techniques to not only improve the ruggedness of the product but also to reduce it's weight. 

VERSATILE EXPANSION

The Rju is designed to expand or change to suit your adventure needs.  The Interchangeable Camera Unit (ICU) System works best with a Small & Medium Shallow ICU, but other depths & sizes work with the Rju AIR.  Furthermore, there are 4 Gatekeeper™ expansion attachment points to further extend the Rju's modular functionality.

COMPONENTS & TECH

The f-stop AIR products are designed and constructed for the elements.  Here are some key features:

  • Extra Durable Airflow Mesh coated Die-Cut ventilated airflow Bloom Carbon-Neutral TPE foam Back Panel & ergonomic Shoulder Straps reduces heat and moisture
  • DuraDiamond® High-Tenacity Rip-Stop PFC Free Nylon is durable and waterproof (20,000++ mm rated) to block weather and environmental elements
  • Heavy-Duty YKK® Zipper back panel access for safe and secure fast-access to camera gear; Large Waterproof TPU S-Type Welded "U" Zipper Top Access for extra gear and accessories
D4EA™

DESIGN 4 ENVIRONMENTAL ACCOUNTABILITY

D4EA™ brings Design Thinking to the entire Product Journey (Cradle to Grave) to minimize the Total Environmental Impact.  Here are the pillars of our D4EA™ mindset:

  • Reduce: Purpose Built, Mission Driven - Engineered for the most demanding situations, our TCO & 5x field life is more than 5x
  • Reuse: Modular System
  • Repurpose: Packaging
  • Repair: Functional and Repairable products
  • Recycle: upPACK - Send it back to us when finished to recycle

WHICH AIR PRODUCT IS RIGHT FOR YOU?

Rju AIR | 18L Modular Daypack

A fully modular stealthy backpack to transport/pack your all your gear in safety from the elements. *Limited AIR Launch Promotion: Free Shallow Small ICU (79.99 Value) with purchase of Rju AIR - Available while supplies last!

Laser cut & Fabric welded
Ergonomic, Robust, BioFoam shoulder straps
Attachment Points


Guru 4 AIR | 24L Adventure Modular Daypack

The ideal photography daypack: for camera, laptop, tripod, electronics, clothes, water bottle, groceries and more. *Limited AIR Launch Promotion: Free Shallow Medium ICU (89.99 Value) with purchase of Guru 4 AIR - Available while supplies last!

Laser cut & Fabric welded
Ergonomic, Robust, BioFoam shoulder straps
Attachment Points

Kashmir 2 AIR - 33L Epic Modular Daypack

An adaptable, long-lasting backpack to bring a little Epic to your day-to-day activities.

Laser cut & Fabric welded
Ergonomic, Robust, BioFoam shoulder straps
Attachment Points
Padded Hip Belt

INDUSTRY BEST WARRANTY & REPAIRS

We make it as simple as possible to exchange your product for a new pack or repair to an existing pack.

Once our customer service and/or pack repair team are completed with your product, we will send it back to you, hassle free.
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