Large Volume (90-105 liter) Backpack

Looking for a large volume backpack for multiday winter hikes - something in the 90-105 liter range that is under 7 pounds, although I'd consider a screamin' deal for a heavier pack. I just need something larger than my 3-season pack to carry mostly extra insulation for colder weather, so I don't need to carry a lot of weight - hopefully never much more than 50 pounds). Something like the Mountain Hardwear BMG 105, Osprey Xenith 105 or 88, or North Face Zealot 85. I have a 33" waist and 21" torso.