I love this pack. I finally got to use it for snowboardinglack of snow here in CA.
Its totally waterproof, I even used it biking in a torrential downpour and my drawings were dry as a bone. Its easy to use zippers in gloves and nice small compartments on top of the larger ones hold your goodies. The snowboard attachment is quick and secure and the hydration system doesnt freeze.
The only thing that would be a plus to this pack would be a waist belt compartment which Ive grown accustomed to on my Golite pack.
I bought these to protect my eyes from snow blindness while hiking Mount Whitney. they worked like a charm. I have extremely sensitive eyes and these lenses performed better than the polarized Smith lenses I had before.
The only downside is that the mirror coating shows any smudges or water marks and great care should be taken when cleaning.