Waterproof Map Case Large keeps your map dry in any weather. Fully transparent and easy to open and close. Distance lanyard with scale pattern included. Silva has developed these cases with ease of use in mind. They are fully transparent on both sides, so there are no need to take out the map to see the other side which saves valuable time. The small corner openings makes it possible to attach the map case to a backpack or on a kayak. The distance lanyard has two scales on it; 1:25, and 1:50, which facilitates to measure the distance of your hike. Since its soft and bendable it’s easy to place it directly on to your route on the map. The neck strap also helps to keep your hands free while out on your outdoor adventure. Map Case Large has a Velcro strap along the short sides so that you can fold it in half, for easier handling. The watertight zip lock makes them very easy to open and Close.