Even though I have a (11") MacAir laptop, a bunch of camera gear, couple of books, and on this trip, a digital projector, the weight is on wheels -- such a relief. Well, duh.
Airports are stressful enough as it is. I'll get my workouts in other ways. The strap is for a fairly aerodynamic camera bag, in which I have my new Olympus OM5-D10 with 3 lenses -- gonna carry it in my city explorations here. The vest is a Columbia Omni-Shade -- lightweight, bunch of pockets Also, stealth vaping -- heh-heh -- works in airports.