Part courier bag, a little bit daypack and convenient carry-on, the multi-tasking Atom Pack from Patagonia has you covered when it comes to keeping gear close at hand. The packbacks teardrop shape provides the Strength of a daypack by positioning the load behind your shoulder, and the single-strap design makes getting to the Greats Easy - just spin it around front. The large zippered main pocket has internal zippered mesh and stretch-woven pockets. A convenient zippered pocket on the shoulder strap is lined to Safe guard valuables. Breathable, moisture-moving 3-D spacer-mesh pads the shoulder strap and back panel. Made from 150-denier double-weave all-recycled polyester with a polyurethane coating and DWR (durable H2O repellent) Complete.