Stach BC pack is as described
The pack performs as described. Good water system with insulation to prevent freezing. Well designed. Great space for gear. The helmet carrier is helpful (only when carrying skis on the sides of the pack in A-frame style). The goggle pouch is a nice touch.
The only limitation I found was carrying the skis diagonally. The lanyard on the bottom left of the pack does not tighten especially well. It was not terribly problematic, but the skis rode a little lower than would be ideal. Overall I enjoy that pack very much and this is a fairly minor critique (the only negative thing I could think of).