I have reasons to believe that the Osprey and Arcteryx offerings top out at around 60lbs, but I suppose I'd include them in a test just to prove or disprove that bias.
The Arcteryx Bora and Osprey Crescents will handle whatever you put in them... certainly 90lbs isn't out of the question.
Actually, in theory they should handle more than the Gregory Denali Pro, Kifaru G2 or non-NICE framed Mystery Ranch...
