Fit & Design: Built with recycled materials and a recycled TPU laminate; based on the maximum carry-on size of most airline carriers, and free of wheels or handles that might get in the way once you're out of the airport Large main compartment with two interior organization pockets and one drop-in top pocket for smaller items; volume is 45 liters Dedicated space for tech storage that fits most 19" laptops, with room for documents and cords; laptop carrier zips open and lies flat for easy TSA compliance Three carrying configurations allow bag to be used as a backpack, a shoulder bag or a duffel, and all straps tuck away when not in use; external lash points add the ability to accommodate more gear Padded, stowable hip belt doubles as the shoulder strap. Change carrying style by pulling the Patagonia Backpack, Patagonia Black Hole, Laptop Carrier, The Black Hole, Carry On Size, Black Holes, Market Tote, Sea Birds, Black Hole