The Highlander Backpack has one purpose, to make your life easier when you travel. Designed with a full perimeter zipper to open flat, you'll never have to unpack when you get to where you're going. It is 100% weatherproof, allowing it to stand up to even the harshest storms. When fully stocked, The Highlander will easily hold 4 days' worth of clothing. Bring along a carry-on roller, and you can travel for a week or more - without having to check any luggage.