Fully transparent, water-repellent plastic material is lightweight & durable 1 zip-shut main compartment with internal organization pocket Built-in laptop sleeve*holds up to 16 MacBook Pro or similarly sized laptop Large, zippered valuables pocket at the front Adjustable, padded shoulder straps for total comfort We built a totally clear backpack that also protects what's in it. Laptop, books, workout gear*this bag's got room for all of it, and will keep it all dry in the rain, too.