I’m looking for a 45-55 L pack at or below 2 lb.
Right now, I’m using a ULA Circuit (L torso, XL hipbelt). I’ve very few complaints about this pack other than weight. My ULA Circuit accounts for nearly a quarter of my base weight- 43 oz out of 12.2 lb.
I’ve been passively looking for something a bit lighter for a while, but haven’t had much luck thus far. A sticking point for me has been hipbelts- I’m a big guy, and many of the lighter packs I’ve tried don’t transfer weight to my hips effectively. The hip belt on the ULA Circuit is exceptional in this regard. Other hipbelts that have worked well for me are Granite Gear’s UL Hipbelt (L and XL) and the hipbelt on the Osprey Aether (L and XL).
More recently I’ve tried the GoLite Jam (2011), which didn’t work well.

