Lowe Alpine Alpamayo 90

Not bad pack. Sturdy and durable. Adjustable stays for torso length, back wicking/air mesh keeps back cool. Detachable top doubles as fanny pack for excursions from base camp. Side access, lots of lash points.

Cons: It's heavy, it rides too low on my tailbone no matter how short I make the torso length, and if you use the internal water reservoir with cold or frozen hydration pouch, the condensation gets the rest of your gear wet.

I've used this pack for about four years now. Those years included many two- or three-day weekend trips. Longest trip was six days in Torres del Paine.

Pros: Comfortable. Plenty of adjustment straps. Side access zipper. Detachable top that doubles as a small lumbar pack. APS allows adjustment to wide range of torso lengths. Hydration bladder. Durable.

Cons: Heavy (7 lbs) by today's standards. Wish it had a large center pocket on back.