Teardrop shape keeps the pack right behind your shoulders where it stays out of the way when you're moving through crowded streets and subway terminals Strong fabric is finished with a durable water repellent (DWR) to protect items from light rain When you need to grab something from your pack, the single-strap design lets you rotate the Atom to the front for quick access Large, zippered main pocket has a dedicated, padded tablet sleeve inside A convenient stretch-mesh pocket on the chest/shoulder strap accommodates a wide variety of phone sizes; adjustable exterior compression straps manage loads of various sizes Breathable 3D spacer-mesh pads the shoulder strap and back panel to wick moisture, dry quickly and increase ventilation