The IPX7 rated construction prevents the ingression of water, sand and dirt. Insert your belongings into the pouch, run your thumb and index finger along each side of the two track LocTop closure and shut with the secure fastening. You can either wear the case around your neck using the lanyard or secure it to your gear using the four lash points.Touch-screen compatibleDurable TPU-laminated 420D nylon fabricIPX7 rated - Waterproof up to 1 metre for 30 minutesLash points for portrait or landscape orientationPrevents dust ingressionHeavy duty LocTop closure with additional secure closureAdjustable nylon cord lanyard and cord lock providedRecommended by Ordnance SurveyWeight: 35gDimensions (packed): 205 x 136mm (opening 170mm)Dimensions (internal): 170 x 100mm