Built For Everyday Missions: From the daily grind to life’s more adrenaline-inducing adventures, the versatile 3 Way 18 Expandable Briefcase can be worn as a tote, backpack, or shoulder bag; this weatherproof 18-liter pack measures 11"x16.5"x10.5" with a weight of 2.7 lbs and can be expanded to accommodate an additional 5 liters of cargo space by unzipping the back zipper Convenient Rip-Zip Opening: Gain access to your essentials quickly and easily with the rip-zip pocket, featuring a magnetic buckle for secure storage; whether you need your phone, tablet, or other personal items at the ready, the 3 Way 18 Expandable Briefcase is equipped for life on the go Superior Organization: The main compartment features stretch woven detail pockets backed with soft material for headphones; an additional divider in the main compartment offers a zippered pocket and stretch detail pockets; handles are located on every side of the bag for convertibility and comfort Sustainable & Durable: We believe that embracing sustainability shouldn't come at the expense of style or performance, and that's why we've meticulously crafted this pack using 500D CORDURA fabric; this repurposed, weather-resistant material is the top choice for outdoor gear enthusiasts for its strength, flexibility, and ability to withstand the most demanding environments We Are Expert Pack Makers: How you spend your time is who you are, and at Mystery Ranch, we spend our time making the best daily bags and load-hauling backpacks in the world; our packs have a job to do, and we make sure they’ll do it right—all day, every day 112902-341-00