Arc'teryx

I used this in the city.
It's still in good condition.

ARC’TERYX SPEAR20
Arc'teryx Spear 20
Capacity: 20L
Weight: 1,016g
This is a daypack with a roll-top system similar to the Mistral.
At first glance, it may seem troublesome to open and close, but it's easy to open by simply pulling up the parts on both sides.
To close it, you just roll it up and pull the strap, so you can open and close it quickly once you get used to it.
Also, the side zipper pocket on the front has a large capacity and can be used to separate items from the main compartment.
In addition, there is a small pocket with a key hook on the upper front, and a hydration pocket inside the main compartment.
Foam is inserted in the bottom panel, which acts as a cushion and prevents the shape from collapsing, keeping the design sharp.
The shoulder harness has thick foam, and a frame sheet with aluminum stays is inserted in the back,
providing a comfortable carrying experience even when carrying heavy items such as laptops and books.