Biking with a laptop in your backpack is way more fun than riding the bus, but the comfort factor — not to mention the security of your rather expensive machine — can leave a little something to be desired. This slim ergonomic pack from Built solves these problems. It’s designed to keep your computer close to your body to prevent jostling, and the stretchy, wide neoprene straps won’t cut into your shoulders or sag to either side. You can even wear it under your raincoat, so wet weather need not crimp your commuting style. $80 at www.builtny.com.