I have had real good luck with Nelson Rigg packs. I bought one in 2003 and a bigger one this year to take to Sturgis. I have run them thru rain and they have kept everything dry. They have several different sizes.
Well whaddaya know - "PVC Leather look, better than leather".
Yep....I figured coming from a company called "Leatherup"....at least they'd be be Pakistani water buffalo or something....but no matter...for that price it's actually pretty nice.