Trail Accessories Review: AntiGravityGear AT Mapdana

The Harry Potter hat for AT hikers: a bandanna that doubles as the key to the trail.

Can the basic bandanna, already one of the most versatile pieces of gear you'll ever carry, actually be improved upon? Our tester says yes after hiking the AT with a Mapdana. Each 27"x27" bandanna includes a color map and data that covers a quarter of the 2,174-mile A.T. path. Point-to-point and accrued mileage, distances to campsites and water, elevations, road crossings, and contact information for towns are all right there, albeit covered in sweat and trail dust. $13; 2 oz.www.antigravitygear.com.