Montbell Roll-Up Map Case MThis waterproof map case protects your map from water damage, even in rainy weather or while shower climbing. It easily attaches to the shoulder harness of a backpack and can be folded in quarters or in half, fitting a four fold 1: 25,001 scale topographical map. Made from a material that resists hardening in low temperatures, it ensures durability in various conditions. *Please note: this item is not suitable for underwater use or situations