I've found the DaKine packs pretty heavy. I have a Black Diamond Revelation which I think is a 35L and it is awesome. Has a removable frame you can put in for heavier loads. I think my only complaint about it is that I believe it's designed to put the shovel head inside the back pocket, and while it works, I just find it awkward. I think that compartment is only for your avy gear, but being the only external pocket I try to use it for other things.