Keep your patterns handy and dry on this sleek, unobtrusive patch. Can be attached to your shirt, vest, pack, waders and boat with either two pins, carabiner, or Velcro. Micro-slit foam on one side, a magnet for those nymphs on the other.
Myself, I'm a fan of less-is-more when on my home waters, so I toss a box in my waders, clip my tools to the various places on my body, and reach for this extremely convenient fly holder. Then I'm out the door. See the last photo. That's my stuff.