What goes up must come down. It’s just the science of a trend. And after the height of the mini bag—a trend that saw the explosion of microscopic bags hardly capable of holding a tube of lip gloss and an iPhone at the same time—came the resurgence of oversized totes, slouchy shoulder bags, and functional backpacks. But the latter aren’t the knapsacks you lugged through the halls of your high school. We’re talking luxury carryalls from favorite designers and emerging, need-to-know brands. They do all the work of a tote in a totally unexpected shape. And we won’t even get into how ergonomic it is to not only wear a bag on one shoulder. Ahead, the best luxe, grown-up backpacks to shop this season.