AER
Founded in 2014 in the San Francisco Bay Area. AER creates modern, functional bags designed for professionals, athletes, and travelers navigating the ever-changing rhythm of the city.

15x Stronger Than Steel—Powered by Ultra400X
The exterior is constructed from Ultra400X by Challenge Sailcloth, a next-generation fabric that delivers exceptional abrasion resistance while reducing weight by approximately 20% compared to nylon.

Ultra utilizes UHMWPE (ultra-high-molecular-weight polyethylene), offering outstanding durability—up to 15 times stronger than steel by weight—while maintaining water resistance.



The interior features a lightweight nylon ripstop liner, balancing durability with improved visibility of contents.





Thoughtfully Engineered Storage—Everything in Its Place
The main compartment opens wide for easy visibility, allowing you to neatly pack clothing and pouches, with enough space for 1–2 nights of travel.

At the top, a quick-access pocket provides convenient storage for items like a smartphone, earphones, and sunglasses.



On the back side, a suspended padded laptop pocket with soft lining securely fits devices up to 16 inches, protecting them from impact when the bag is placed on the ground.



The top quick-access pocket ensures essential items are always within reach.

In addition, a hidden pocket for a smart tracker adds an extra layer of security against loss or theft.



The front features an organizer pocket for neatly storing everyday essentials such as pens, charging cables, and mobile batteries.



A luggage pass-through on the lower back allows you to secure the bag to a suitcase handle for smooth travel during business trips or journeys.



An ergonomic harness system, cushioned shoulder straps, and a supportive back panel distribute weight efficiently, maintaining a light carrying feel even when fully loaded at 20L.

The zippers are reliable YKK zippers, and all hardware is unified with Duraflex components—ensuring durability down to the smallest details.



A side water bottle holder neatly fits bottles around 500ml.

Grab handles are placed at the top and sides for quick handling, supporting both vertical and horizontal carrying—ideal for commuting or storing in overhead spaces.





45 x 30 x 15 cm—A Smart Form for Work and Everyday Use
With dimensions of 45cm (H) x 30cm (W) x 15cm (D) and a 20L capacity, it offers the ideal balance for daily commuting plus an overnight stay. While maintaining depth for storage, the restrained width ensures a clean, streamlined silhouette when worn.