Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
I have had my eyes on a style I've seen that looks something like the one shown in my link here...This isn't the actual one though...I don't remember the name. I have seen them with fly shop logos on them etc...They have foam slits, and the cool thing is the lids are deep enough not to crush parachutes etc. The ones I've seen are two sided. Plus the lid is clear.
Sorry I don't know the makers name...
http://www.gatesflyshop.com/The-Big-Fly-116_p_185.html
I also like the C & F boxes and own a few...I own a couple of their slotted boxes which I love, but I'm not too fond of their compartment ones with the clear plastic inside the lid which is held down by a magnet...Flies always gather around the magnet and when you lift this second lid some flies stick to it...Poor design.
Like Matt I have a bunch of the Myran boxes in different sizes...I have a couple Wheatleys and a green tinted plastic box that was made in France and was one of my first and is still going. Matt. Maybe you remember those as well...I think it may have started with a P?
Spence
PS. Don't your dry fly hackels get matted in those C & F style boxes?
if I fell in all those flies would get wet and it would ruin my trip because I would have to get out and dry off every single fly.
I told my wife that when I die to be careful about someone coming over and saying "let me help you out and get rid of all those flies, I'll give you $500."
My biggest worry is that when I'm dead and gone, my wife will sell my fishing gear for what I said I paid for it.
-- Koos Brandt