Chaos

My wife and I have Chaos backpacks and we absolutely love them. I have climbed with one in Bolivia, France and Mexico.

Pros:
Light
Awesome volume
Good pockets on top cover (3 of them!)
Daisy chains all around
Gear loops
Ice tools hostlers
Crampons Pockets
Compressions straps
Bivy pad
Hauling loops

Cons:
The material is a light weight as it can be: will be useless if heavy hauling; it will destroy it.
The size really maters: get yours carefully
Not for carrying heavy weight: the backpacks of this type are not as comfortable as expedition packs.

Overall I rate the pack as the best money can get for alpine or light weight climbing. It close alternative would be an Andinista but the price is way higher!

Great alpine pack, zippers dont freeze up, eazy access to tools, and crampons in sub temps!! I never like those crampon pouches that you have to lash to the pack, but it is a great all around pack, not the strongest material. I you are trying to go light this pack is perfect. Its not made to handle over 40lbs but in the winter with all the clothing it wont be too bad. Check out the specs, get options on this pack, built better than the Ice pack by bd. I liked this one also cuz there are no tool tubes which are pretty annoying and if you put a mountaineering axe in a tube it will not fit..