Arc'teryx (Cut) Arro 16:
The Arro 16 is a crossover pack that's equally at its best in harsh urban environments or rugged wilderness terrain. With 1,010 cubic inches of space, it's the compact pack in the Arc'teryx Arro series. It also has a stretch hydration bladder pocket for a hydration bladder (not included). The Arro accommodates a wide range of hydration bladders, including Camelbak 2.5 liter models, but Arc'teryx does not recommend Platypus models with side seams that can damage the pocket. Foam shoulder straps and thermoformed back panels minimize back stress, even when you're loaded down.