How does it compare to an Arcteryx Silo...
How does it compare to an Arcteryx Silo 30? or maybe a Peak Performance R&D Backpack - 28L?
I actually took back the R&D because a strap broke just 2 days after i'd had it, and got the code 30. I looked at the silo too, but opted for the osprey because of the total access zipper, compartments, ski mounts, and the helmet holder which will easily double as a rope holder for climbing too.