Arc'teryx's Mantis collection gets updated with a full range of sizes this season with spacious 32L options all the way down to waist pack sizes for all your smaller essentials. The designs are clean and minimal, just like their outerwear with monochromatic, tonal colorways. We've got our eyes on the Mantis 32, which has room for everything you could possibly need and the Mantis Sling Pack (right), a smaller silhouette that can hold up to a ten-inch tablet and has a discrete set of rear pockets for items like a transit pass and smartphone. 

$49-$169, arcteryx.com