Best hydration pack I've seen yet.
This pack is excellent for day hikes and day back country skiing. It has enough room for emergency kit, head light, and sunscreen with enough room for food and extra sweater. The only down side to this is that water can freeze in the hydration nozzle, so be sure to blow the water back into hydration pack every mouth full otherwise you may get thirsty later! Very strong construction. I've had some spills and I haven't ripped anything yet!