Product details:

Travel or trail, work or weekend. This little pack is happy to go anywhere. And at 20L, it's that perfect size for boarding a plane, hitting your local trail, or sprinting for the bus. Built for versatility, the zippered sleeve pulls off a double act as a laptop compartment or a hydration sleeve. Just the right number of pockets make this your go-to bag on every trip, every weekend, and every weekday. Perforated foam harness gives a nice balance of comfort and support. Adjustable sternum strap takes tension off the shoulders. Separate zippered sleeve holds a laptop or a hydration bladder (sold separately). Zippered top accessory pocket keeps personal items secure. Front stretch mesh pocket closes with a buckle, with room for a rain shell. Dual side stretch mesh pockets increase your storage options. Loop attachment lets you clip on a bike light or carabiner. Removable webbing hipbelt.