Umpqua's entirely evolved line of UPG fly boxes gives any angler multiple features, options and configurations through their flexible designs.
The Big Differentiator, it the new Injection-Molded Fly Sheets.
Injection molding versus traditional die-cut sheet foam gives Umpqua infinite possibilities in all three dimensions that will have you trading in all of your fly boxes. Here's why:
Extreme Gripping Properties - Thanks not only to the density and low memory of the material itself, but also to a unique slit-cutting procedure during which the slits are cut when the material is curved. The result is a tighter grip.
Unique Formats - Unlike die-cut foam, this new injection-molded material allows for 3D design resulting in formats that have never been seen before in fly storage.
Lighter than Comparable Inserts - Smart tooling design reduces material use. (TPE is lighter than silicone)
THE UPG HD (Heavy Duty)
Bomb-proof and water-proof, these Heavy Duty UPG boxes have the highest level of durability and funtionality in fly box storage. See-through lids allow maximum visibility of contents and new TPE inserts provide the strongest fly-grip storage available. Swing-leafs are magnestized to assure swing-leaf remains in proper place when opening/closing.
Being a Coloradan and a long time fan of water tight fly boxes, I wanted badly to love this. Unfortunately, I developed more of a live hate relationship. The molded fly sheets are a huge improvement over older foam boxes in terms of durability, hold, and ease of use. However, I found to clasp to be unnecessarily cumbersome, and not cold hand friendly. I also found myself “repairing” the box regularly. Whether I was gluing down the rubber inserts to keep them from pulling out when you opened and closed the box, or constantly adjusting and even replacing the joint pins it just seemed like too much hassle. These are also relatively heavy, which can be a plus or minus depending on what you are looking for. While on the one hand they feel indestructible in your hand and on the other they feel...well, heavy.