great day pack
I've been using the Silo 30 and Silo 50 for two years now. I couldn't ask for a better backpack in the backcountry and resort. The silo 30 is an ideal day pack bag for tours or in the resort. The outside zip carries skins easily, the top zip carries goggles, hat, snacks, or any gear you use often, and there is ample space inside for your shovel, probe, bladder, lunch, SLR, and 2 layers of extra clothing. I very much like the ease of the ski carry as well: fits up to about a 130mm waste ski no problem. There is minimal damage after 2 years of 50-100 ski days with it. It is hard to find a good-fitting small pack for tall people (I'm 6'1), so the fact that Arc'teryx makes this in small-large is perfect. I really don't have anything negative to say about it..