I know there is a review thread on here for Bags Unlimited, but Josh (EegahChaka) went halves on some custom-made sleeves that I believe may be superior to those from bags unlimited.
The pouches more or less look like this:
The pouches are crystal clear, like glass, with a similar flattering gloss. They are also rather rigid because they are made of mylar, meaning they won't roll with a rolled poster (at least a loosely rolled one, I imagine. I haven't actually tested it).
The six hole punches were included with the intention of building a large easel-style binder around the sleeves giving Josh and I a method of moving and displaying a bulk of our posters at one time (similar to trading cards). The binder itself isn't built yet, but the sleeves are exactly what we were hoping for.
The protective flap keeps posters from falling out and keeps them clean. The sleeves are of course library of congress approved to be acid-free and non-threatening to paper products. The fact that the open side of the pouch is the long side makes it easier to put in a poster due to the more shallow depth of entry. There are a few more pictures that show what they look like with a poster in them posted below. The poster is Josh's, of course.
Binder tab:
Protective Flap:
The sleeves were priced depending on how many you got. Josh and I got $50 and it was roughly $10 a poster and $20 shipping putting us out about $260 each. The sleeves are thin, but can more than safely house two posters back to back.
If anybody is interested, contact Wally at
http://www.atlanticprotectivepouches.com/.
