Maximum capacity in the lightest and thinnest form possible.  As the name suggests, this fly wallet was designed to be the ultimate destination travel companion, but is a great option for carrying a LOT of flies in a tight bundle in the boat or your pack. 

Thinner and lighter than any fly box, two BIG panels of premium loop material hold streamers, nymphs, and wet flies (well) without fixed slots.  Inside pockets work great for storing leaders, tools, or other gear.