Patagonia's stealthy Atom Sling carries your daily quiver with all the comfort of a backpack, the convenience of a shoulder bag and the ergonomic, low-profile performance of a courier’s tote. The Atom’s teardrop shape keeps the pack right behind your shoulders where it stays out of the way when you’re moving through crowded streets and subways terminals. When you need to grab something from your pack, the single-strap design lets you simply rotate the Atom to your front for quick access to your kit. The large, zippered main pocket has mesh and stretch-woven pockets inside (with hook-and-loop closure) to organize small items. A convenient zippered pocket on the shoulder strap has a soft lining to protect your valuable electronics, and adjustable buckles provide lash points for any extras on the outside. Breathable 3-D spacer mesh pads the shoulder strap and back panel to wick moisture, dry quickly and increase ventilation. For biking and hiking, an integrated waistbelt keeps the pack close to your torso. The body is made from 450-denier 100% recycled polyester and lined with 200-denier 100% polyester. The base is 450-denier 100% recycled polyester, and all fabrics have a DWR (durable water repellent) finish.