Forget loops for ice picks and built-in hydration systems. Unless you happen to attend school on a precarious mountain perch in southwestern Peru, you need a backpack that caters to a different set of needs. Like room for your laptop and MP3 player. A separate pocket to divide sweaty gym clothes from notebooks. A pocket that can keep a can of Coke cold until lunch. And we've found backpacks that deliver. These slick back-to-school backpacks could almost convince us to revisit the forlorn halls of high school. Or the tree-shaded greens of a college campus which would take significantly less convincing.