Although I like UL, I admit to having a Mystery Ranch Snap Dragon. Although rated at 35L, it is really a 45L plus pack. Not a featherweight but by golly, load it up with 35 pounds and it feels like part of my body. Fully adjustable torso size and I went with a larger belt and shoulder harness.

Sorry - a bit off topic but the last two posts got me thinking. They also make the Big Sky which is rated at 50L but is closer to 60L.