The Nitro Splitback 30L Pack features a unique roll-top design that can be expanded from 22 - 30L and comes fully equipped with all the functionality you need to haul your avy essentials and beyond into uncharted terrain. Finished with a large double zipper backpanel access that lets you quickly get to all the contents of your pack, it's never been easier to fish out those goodies that are stuffed at the bottom of your pack.