The cam buckle alone is a marvel. Than there is the side-entry “Napoleon pocket,” for your laptop with the heat-venting “crater” sleeve. This is the messenger bag for people who like plenty of thoughtful pockets — a place for everything.
You put the bag across body, cinch it up under your arm, and you have an ergonomic fit as secure as any backpack. This is not a messenger bag that is constantly trying to escape your body as you ride along. The strap “remembers” where you like it, and makes it easy to adjust on the fly.
The zipper is all but invisible from the outside, making this bag water repellant to protect your sensitive electronics inside.