Thanks for all the replies to my last post.&nbsp\\; At this point I'm sold on the Ospreys with a locking detachable bracket for about $500.&nbsp\\; As far as the higher priced bags, I'm curious about the Iron Bags vs. the Boss Bags.&nbsp\\; I've seen Boss Bags on a fatboy at the stealer.&nbsp\\; I haven't seen Iron Bags yet.&nbsp\\; Can anyone comment on how the attachments compare, and any benefits from one over the other.&nbsp\\; I'm more concerned with keeping what's in the bag safe and dry.