IMO, yes -- if you can keep your total weight (including food, water, etc.) to 30 lbs or less.
No, it's not ultra-light, as packs go. IMO, an ultra-light pack would weigh well under one pound. But any UL pack, by that definition, would probably be limited to around 15 lbs. total load.Is this considered (by hikers here) to be an ultra-light pack, and how many days of food can one expect to support with this pack? (clearly gear dependent question, but generalize)