Recently purchased this pack, and loaded it up with my kit and realize that I need the larger GG Mariposa pack. As such, this pack is up for sale.
The Gorilla 2012 pack is the large torso (19"-22") size with a medium hip belt. The pack has never left the house and is in the same perfect condition that it arrived in. More information on the pack is available on the GG website - http://gossamergear.com/packs/backpacks/gorilla-2012-ultralight-backpack.html
Looking for $200 shipped in the US, which would save someone $30+ over buying it direct from GG. Let me know if you have any questions and/or make me an offer.