Protect your maps, GPS unit or mobile phone from rain, dust, repeat creasing and constant folding. This map case is super tough and ideal for all outdoor activities from sea kayaking to backpacking, off road driving and adventure racing.
Sea to Summit says:
Waterproof and dust proof protection for maps, documents or anything you need to keep dry. Adventure racers love the adjustable neck strap feature and mountain bikers can thread the strap to their handle bars.