This smart little pack brings a dash of technical know-how to a street-savvy bag. In town, you can remove the hip strap to dial back the crunchy-guy factor, while a bit of reflective piping increases your visibility when riding or walking in the dark. Wherever we were, the water-resistant ripstop fabric and full-coverage top closure kept our stuff dry in a driving rain, while the side clips held everything from a packable fly rod to a half-dozen roses. At 800 cubic inches, it's just big enough for all-day summer excursions. 1.7 lbs; crumplerbags.comBonus: It comes with a really nice (it's made by a company we like called Source) 70-ounce hydration bladder that you'll actually want to use. Its sliding top closure is well constructed and wide, making it easy to clean.