NO, NO, NO! You want to spend $120 on a day pack? Send me the money, I'll buy you something nice and keep the change. Even with postage, I bet I'd be $60 ahead of the game.
Seriously, way overpriced for what you want. If you really are only going on one 12 hour hike, almost anything will do. Get a cheap pack from a store like Sports Authority and have fun. Don't spend $120 on a pack you might only use once.
More points-this pack isn't very big, but fine for day hiking and UL overnights (which you won't be doing). However, do you really need a daisy chain and ice axe loops? Didn't think so. You are paying for a lot of stuff you don't need.
Here's a nice little REI pack for $60 and about the same size.
http://www.rei.com/product/778464Here's another one, a little bit fancier, but still only $80.
http://www.rei.com/product/778467REI sells good stuff and will take it back if it breaks, no questions asked.
I have a cheap pack made by Outdoor Products I have used a few times for winter day hikes. Don't laugh you brand freaks, it's really well made, bigger, same or more features (mine has a huge shovel pocket) and cost only $40 brand new at Sport Chalet or Sports Authority, can't remember which one. A friend of mine took it to India for 3 weeks and it was no worse for the wear.
My point again-you don't need to spend $120 for a one time or even more times day pack. Got a thrift store nearby like Goodwill or Salvation Army? Some of them may carry sporting goods, some don't. If you find something at one of them, you'll pay maybe $20 instead of $120.
My little day pack? Free, 20 years old and used all the time. Sure it doesn't have a bladder, etc. but it's a day pack.
Don't forget-take along the TEN ESSENTIALS-see list link on home page, extra food, rain gear, light, warm clothes, etc. Spend some of that $120 on that stuff, not your pack.