The Day Star™ is Camelbak's ultimate grab-and-go pack, with enough features for a quick out-and-back. It also does double duty in the front country—remove the reservoir, and it’s got room for books, lunch and a layer. Put it back in, and you’ve got enough water for 2+ hours on the trails. If you’re loading up for a longer hike, there are side pockets for extra water bottles, and…