Cloud Walker ($60 at REI)

CamelBak H.A.W.G.
($100 at REI).

Unfortunately, the 30% sale has expired. The HAWG is now back up to $100. At that price, I really, really, really prefer the Cloud Walker. As I say below, if you own a 100oz bladder, it will go just fine in the Cloud Walker. Anyway, the links work again, but no special prices. That means that the Cloud Walker is $60 (minus 10% if you are an REI member, so $54), whereas the HAWG hogs a full $100 of your budget.

Here's my original Camelbak Hawg and Cloud Walker review

The Camelbak Hawg is not my absolute favorite day pack. I prefer the Cloud Walker, but I'm highlighting the HAWG because this is the deals page and it's currently 30% off at the Backcountry.com Outlet (marked down from $99.95 to $69.95). That said, my favorite small daypack, the Camelbak Cloud Walker, is actually cheaper at $59.95.

I've tried probably five or six brands of hydration packs, both American and European. I loved the concept from the first I saw it and have been using them since 1992 (which makes me a fairly early adopter, especially for the mountaineering world). Now I only buy Camelbak because I've never had a bad experience and almost every other brand has let me down in some way. So I'm perhaps a fairly objective reviewer within the Camelbak line, but not that objective when comparing Camelbak to others.

Note that you can put a 100oz bladder in a Cloud Walker, but you need to buy it separately.