I'm really dating myself here, but does anyone else remember the old Gerry (Cunningham) external-frame design that was almost ALL horizontal zippers? Seems like it had about a dozen of them, all the way across (no side pockets). Ranks right up there with wraparound frames in my book. Back in the "Easy Rider" days they sold a million of them in red, white, and blue horizontal panels. Don't think I ever saw one actually in the woods, but there were an awful lot hitchhiking the highways.