Patagonia's Atom Sling 8L grips your back with a climber's tenacity. It carries the fundamentals 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 subway terminals. When you need to grab something, the single-strap design lets you rotate the Atom to the front for quick access. The large, zippered main pocket has a dedicated, padded tablet sleeve inside.