f-stop AJNA 37l DuraDiamond™ backpack - Cypress Green

f-stop AJNA 37l DuraDiamond™ backpack, Cypress Green for photo adventures and hikes

Right in between escaping the city, a weekend trip to the mountains, and a spontaneous photo tour is where the f-stop AJNA 37l DuraDiamond™ in Cypress Green feels most at home. It’s not a huge expedition pack, but also not a dainty daypack—more the golden mean for anyone who wants to stow their camera gear safely and still have room for a rain jacket, snacks, and a bit of “just-in-case” stuff.

Well-thought-out volume and compact dimensions for travel

With its 37-liter volume, you hit the sweet spot for short hikes, city trips, or flights where you’d rather keep your gear in carry-on than in the hold. The backpack weighs about 1.8 kg, which is surprisingly moderate for this level of stability and features.

The external dimensions are chosen with practicality in mind: approximately 53.34 cm in height, 33 cm in width, and 25.4 cm in depth. The torso length of around 36.5 cm ensures that the AJNA sits comfortably on many body sizes without constantly pressing into your neck or rubbing on your hips—an important point, especially when hiking.

Durable DuraDiamond™ material for changeable weather

For the material, f-stop relies on DuraDiamond™, a lightweight, robust, and weather-resistant fabric structure that doesn’t immediately take offense if you snag it on a rock edge or are out in drizzle. It feels noticeably sturdy without feeling like a board. Perfect if you’re outdoors a lot but don’t want overly heavy packs.

In addition, the zippers are designed to be weather-resistant. The woven-in zippers offer significantly higher strength than classic coil zippers, which you’ll especially notice when the backpack is fully loaded and you’re constantly opening and closing it—in other words, in real everyday use, not just in the showroom.

Carrying system with aluminum frame and BLOOM™ foam

Inside, an aluminum frame works to transfer the weight efficiently onto your hips. That may sound like catalog speak, but in practice it’s the difference between “still just about okay” and “fine, I can carry this all day.” Especially if you’re out with a camera, several lenses, and maybe a tripod, you’ll quickly come to appreciate this relief.

The shoulder straps and hip belt contain dual-density algae-based BLOOM™ foam. This provides comfortable carrying and better support without the padding looking squashed after a short time. The foam adapts well while remaining stable enough in shape to avoid uncomfortable pressure even on longer hikes.

For truly comfortable carrying, it’s recommended not to exceed a total gear weight of around 12 kg or 27 lbs on a permanent basis. Sure, a bit more is possible in everyday use, but in the long run your back will thank you if you stay in this range.

Optimized for travel, hiking, and carry-on

The AJNA 37l is ideal for travel and short adventures. Thanks to its compact design, it is, in many cases, suitable as carry-on (always check the current airline regulations if in doubt—they seem to change more often than the weather). For weekend trips, day hikes, or photo outings in the city, the volume is absolutely sufficient without you having to trudge through narrow alleys with an oversized trekking backpack.

Especially when hiking, the combination of a stable frame, well-padded straps, and balanced volume shows its strengths. You can stow your photo gear safely and still have room for a water bottle, food, an extra layer of clothing, and small items like gloves or a beanie.

Flexible organization with ICU compatibility

The backpack is delivered without an ICU (Internal Camera Unit). That means: you get the AJNA as a high-quality, empty backpack shell and can choose the camera insert separately according to your needs. This way, you’re not tied to a rigid standard layout but can configure your setup to match your gear.

Please note: the appropriate ICU must be ordered separately. The product images usually contain notes on compatible units, so you can quickly see which inserts make sense.

The following ICU variants are particularly recommended for the AJNA 37l:

• Shallow Medium, for more compact setups with mirrorless cameras or smaller DSLR kits
• Slope Medium, if you need a bit more flexibility in the height of your lenses
• Pro Large, for more extensive setups with multiple lenses, possibly including a telephoto

This allows you to use the backpack either in a very photo-centric way or pack it more as a hybrid—camera at the bottom, clothing and accessories on top. Depending on whether you’re currently more photographer or more hiker.

Improved pockets, lid, and back panel organization

Compared to older generations, the AJNA features improved organization and storage options on the pockets, lid, and back panel. In practice, this means: less searching, more structure. You’ll find what you need more quickly, whether it’s a filter, memory card holder, multitool, or the granola bar you “safely” stashed somewhere.

The layout is designed so that you can easily access frequently needed small items without having to dump the entire contents of the backpack on the ground every time. This is a real advantage, especially when traveling or in changeable weather.

Side pockets and storage for water bottles

On the sides you’ll find mesh pockets that are sturdy enough to hold a 32 oz or 1-liter Nalgene bottle. So not just those small, half-hearted bottles, but a proper water supply. This is worth its weight in gold when hiking, because you don’t have to take off the backpack every time you want a drink.

The side pockets are of course also suitable for other items: a compact tripod, a rain jacket for quickly throwing on, or even a folded sit pad if you’re out for longer.

Durable hardware made from T6 aluminum and plastic

For the critical carrying and attachment components, f-stop uses a combination of T6 aluminum and high-quality plastic hardware. This brings two advantages together: high stability at stressed points and, at the same time, a moderate overall weight. The parts you pull, lift, carry, or hang the backpack from are deliberately reinforced.

Especially if you regularly load the AJNA to the max, slide it around in the car, or constantly pull on handles and loops while traveling, this construction pays off. The backpack is anything but delicate when it comes to everyday use.

Weather-resistant zippers for outdoor use

The weather-resistant zippers keep out light rain, splashes, and dust significantly better than standard solutions. The woven-in zippers are also much more robust than typical coil zippers, which you’ll particularly notice when you pack the backpack to the brim and the zippers still run smoothly.

Of course, this doesn’t replace a full rain cover in heavy downpours, but for typical outdoor situations where the weather suddenly changes, you’ll be much more relaxed with this setup.

Comfort even on longer outings

Thanks to the aluminum frame, which transfers the weight to your hips, and the BLOOM™ foam in the shoulder straps and hip belt, the AJNA is designed for all-day carrying comfort. We’d say: ideal for everyone who doesn’t just walk from the parking lot to the viewpoint, but actually spends a few hours on their feet.

The backpack sits close to the body without feeling restrictive and remains stable on your back even on longer tours, which is especially pleasant when shooting in uneven terrain. You don’t have to constantly readjust and can focus more on finding subjects and less on fiddling with straps.

Conclusion: a versatile 37l backpack for photography, hiking, and travel

All in all, the f-stop AJNA 37l DuraDiamond™ in Cypress Green is a very versatile backpack for anyone who wants to transport their camera gear safely while also valuing carrying comfort, robust materials, and smart organization. It’s designed to be carry-on friendly, built to be hike-ready, and optimized for photo use—a combination you don’t find on every corner.

If you’re looking for a backpack that looks good on trips, hikes, and daily photo outings, doesn’t appear overloaded, and is still professionally equipped, then the AJNA 37l will very likely fit into your setup quite nicely.