Huh! I'd imagine the o___o pocket would be really useful on a bike. I always have to dig for the wallet and change on the toll booth and a big snap-on pocket like seems like a really good idea. Unzipping pockets on a new Vanson is always a nightmare! But is the leather really this much lighter than the comp. weight? According to Vanson, the Z-150 is like marginally lighter and still heavier than the fuh-ren-zee stuff.