Well, I never planned to build this but at a Japanese customers request we now have the Alpine Luddites fanny pack. This is an exact copy of an old Wilderness Experience pack.
Specs:
5 L volume
padded back panel
#8 YKK waterproof zipper
leather lash tabs
Cordura construction. The fabric is based on the color ordered. both work fine for this pack. Random colors may have other fabrics in the mix: Xpac, Dyneema, ballistics etc.