Rju AIR Pack with Shallow Small ICU

Rju AIR Pack with Shallow Small ICU (Gear Example)

Rju AIR | 18L Modular Daypack

(14 Reviews)

A nifty everyday backpack made from our best technical fabric, keeping your gear safe from the elements.

From $ 99.99

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The Rju AIR daypack is exactly what its name suggests ("ri-joo" ऋजु = simple). Behind this simplicity is 2000+ hours of user testing to ensure optimal fit, comfort, and usability. Dual access—from the top and rear—lets you make quick swaps and capture fleeting moments before they pass.

18 liter capacity: Main compartment accommodates a variety of camera equipment, lenses, and personal items. Need more room? Try the larger Guru 4 AIR 24L Daypack.

Advanced gear protection: Crafted with weatherproof DuraDiamond^® exterior, waterproof welded zippers.

Comfort and support: Mesh ventilated, die-cut back panel and shoulder straps reduce heat and moisture

Access and organization: The zippered back panel keeps gear safe; a top zipper provides quick access.

Adventure-ready: Load more gear with 4 GateKeeper attachment points.

FlyWISE: Fits under the airplane seat according to most international carry-on limits. ICU (Internal Camera Unit) can be removed for bag sizing or checking your pack.

Specifications

Total Volume: 18L
External Dimensions (Height x Width x Depth): 43 x 30 x 13 cm (16.9 x 11.8 x 5.1 in.)
Minimum Product Weight (Pack Only): 0.645kg
Elemental Protection: IP55 Rating
Number of Exterior Pockets: 1

Materials & Sustainability

Exterior fabric: 20,000mm waterproof DuraDiamond^®
Padding: BLOOM carbon-neutral TPE foam
Packaging: Home compostable, plant-based, single-use packaging
CO₂e footprint: 7.8kg (Offset by walking/biking 82 m instead of driving)

Pack/ICU Compatibility

ICU compatibility: Best with Shallow Small ICU, Shallow Medium ICU

SKU: a1300 Categories: AIR Series, Camera Bags Tags: AIR Series, Camera Bag, Rju AIR

AIR IN ACTION

RJU AIR Product Tour

RJU AIR How It's Made

COLORS

FEATURES

ICU COMPATIBILITY

VERSATILE DESIGN

Flywise

Customer Reviews

Rju AIR | 18L Modular Daypack

Simon Phillpotts

Rating: 5/5

So versatile and justifies the 'Air' title!

I love this little pack. It's perfect for cycling, day's out and city trips, both with and without an internal camera unit. I'd say this is the most versatile and well used of all my camera packs. It's always in demand for a variety of trips from a lightweight walk in the hills (with a small ICU and a camera body and two lenses), to a flight to visit relatives with a few clothes and essential. On aircraft it passes any carry-on test and fits perfectly under the seat in front, with space for your feet on either side. The bright colours available are also useful for cycling where you need a lightweight, visible and comfortable pack. I often use it when capturing drone footage, cycling from location to location with the small shallow ICU installed. It's not overcomplicated but it is tough and weather resistant with the DuraDiamond fabric. It also weighs virtually nothing so it's 'Air' designation is well deserved!

Tue Mar 31 2026 02:31:00 GMT+0000 (Coordinated Universal Time)

Rju AIR | 18L Modular Daypack

Victor Bellehumeur

Rating: 5/5

Perfect Size

I was looking for something small that could accommodate my GFX and three lenses and this fits perfectly. I didn’t want any extra cords, straps, buckles hanging off the bag and I needed light as possible. My solution for gear protection was to use wraps instead of the ICU and they work out best for me. Maximum weight turns out to be 10.7 lbs with the camera, three lenses and some Kase Armour filters. All in all this is a great purchase for me. Time will tell how well it holds up.

Wed Oct 01 2025 17:01:05 GMT+0000 (Coordinated Universal Time)

Rju AIR | 18L Modular Daypack

amona cofar

Rating: 5/5

Mochila RJu

This brand is amazing. This time I bought an Rju backpack for our teenage son because he needed one for school. It's very, very comfortable when carrying several things. The materials are, as always, high quality. All I can say is: I 100% recommend FStop.

Thu Sep 25 2025 07:46:38 GMT+0000 (Coordinated Universal Time)

Rju AIR | 18L Modular Daypack

Carlo Cellerini

Rating: 5/5

Meets expectations

I needed a backpack for day trips that could hold other things (keys, wallet) in addition to the equipment. Ryu air turned out to be perfect for my needs.

Mon Jun 16 2025 06:13:01 GMT+0000 (Coordinated Universal Time)

Rju AIR | 18L Modular Daypack

Redelf Janßen

Rating: 4/5

Rju AIR | 18L Modular Daypack - Magma (red/orange)

Nice small backpack. My only recommendation is: give the backpack an add'l horizontal strap to connect the left and right shoulder straps

Mon May 19 2025 10:05:14 GMT+0000 (Coordinated Universal Time)

Rju AIR | 18L Modular Daypack

Stuart Langrehr

Rating: 5/5

Rju Aiir 18 “

Very good. It’s a pack that’s for me is in the middle. Not too big, not too small, a great day pack and pack for TSA acceptance. I like it and appreciated the inclusion of the internal unit. Recommend….

Tue May 13 2025 23:39:23 GMT+0000 (Coordinated Universal Time)

Rju AIR | 18L Modular Daypack

J M

Rating: 5/5

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!

Tue May 06 2025 12:31:52 GMT+0000 (Coordinated Universal Time)

Rju AIR | 18L Modular Daypack

Fabio Jose Silva Luis

Rating: 5/5

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 .

Fri Apr 25 2025 16:18:31 GMT+0000 (Coordinated Universal Time)

Rju AIR | 18L Modular Daypack

John Wells

Rating: 4/5

Nearly perfect

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

Sat Apr 05 2025 12:53:01 GMT+0000 (Coordinated Universal Time)

Rju AIR | 18L Modular Daypack

Martina Brodu

Rating: 5/5

Perfect for me

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

Tue Apr 01 2025 17:03:23 GMT+0000 (Coordinated Universal Time)

NOT EVERY ADVENTURE IS EPIC, BUT EVERY MOMENT COUNTS

f-stop AIR Series: Purpose-built for Visual Storytellers with a Mission

Lightweight At It's Core

DuraDiamond Construction

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 its 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

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