Magnetic closure Modular Bag System by Peak Design, customise the internal carry options to match your requirements Meets international max carry-on standards in default 35L configuration. Dual expansion zips give 10L extra volume for 45L max storage. Dual side zippers for instant camera and item access. Full rear access via large dual zips. Quick tablet and laptop access using the main back zip. Packing Tools, Camera Cubes, Tech Pouch and Wash Kit compliment the Travel Line Backpack and are available separately.