In my boat, I'm not worried about carrying the fly box so the size of the box isn't an issue. I just use one of the Plano 3700 style lure boxes. It is just a standard lure box for the casting crowd. You can get them at Walmart for a couple of bucks and you can put a lot of flies on one of those things. I just leave my tippets, etc. in my fannie pack, but I don't wear it while I'm in the boat.

Rex