I’m very loyal when it comes to travel backpacks. I wear them into the ground, and I usually destroy them. My last pack, a Knack Series 2, was solid, but no matter how little I put in it, it always felt too heavy because of the design and pocket layout. When a Knack zipper finally gave out, I went looking for something new.

A friend pointed me to Aer, so I picked up the Aer Travel Pack 3 Small Ultra. The “Small” designation is important because I’d say the standard size is too big. This bag holds 28 liters and weighs 3.5 pounds. It uses Ultra400X by Challenge Sailcloth, a light, waterproof fabric with a matte look. A padded, suspended pocket fits a 16-inch laptop, and the lay flat main compartment makes packing simple for clothes and shoes. You get quick access top and side pockets for small items, an expandable bottle pocket, and a hidden smart tracker pocket. Compression straps with magnetic fasteners steady the load, while load lifters, an internal framesheet, and handles on all sides keep carry comfortable and controlled. Lockable zippers add security, there are attachment points for a removable hip belt, and a luggage pass-through plays well with rolling bags. At 19 by 13 by 7.5 inches, it stays compact without feeling cramped.

I like this model because it is not too big, yet it carries a lot without dragging you down. On recent trips I fit shoes, clothes, a laptop, adapters, and a watch case without trouble. The structure helps it slide under a seat or into an overhead cleanly, and the built-in bottle holder is a real plus. The Knack lacked a bottle holder, and I missed it.

The striking part is the price, $279. It matches similar bags by size, though it sits on the high side for travel gear. Given the durability of the sailcloth, the zippers, and the thoughtful design, you can spread the cost over five years and feel fine about it. In short, you will not need to upgrade any time soon.

Aer is obviously an Instagram brand, one that follows you once you click a link, but I like the Designed in SF look, and I like the materials. It is half a pound heavier than the Knack, and I think Aer’s design and build make the whole package feel more compact and wearable. I have tested too many bags over the years, we used to run Bag Week at TechCrunch and review dozens in seven days, and this is one I plan to keep for a few years, until I finally wear it out.

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