Be incognito yet stylish with the Riff Sunglasses by Dragon. You will be 100% protected from UV rays when you slip these on. The Riff sunglasses have a nylon frame material and a 8.75 base curve polycarbonate lens. There is also a 5 barrel hinge. Features: Altimeter, barometer lock, Automatic alti, baro switch, Lockable logs, Difference measurement, Altitude range -500m - 9000m (-1600ft - 29500ft), Log graph, Automatic 7 day alti-baro memory, Logbook function, Temperature compensation, Resolution: 1 m, Real time vertical cumulative value, Storm alarm, Sea level pressure, Temperature: range -20 - +60 C (-5 - +140 F), Altimeter, barometer lock, Barometer resolution 0.05 in Hg, 1 mbar, Barometer pressure range 8.90 - 32.40 in Hg (300 - 1100 mbar), Trend graph, Barometric trend indicator, Temperature, Temperature resolution 1degree C (1 degree F), Guided calibration for compass, Bearing tracking for compass, Declination setting for compass, Heading in degrees for compass, Cardinal directions for compass, Chronograph countdown timer, Chronograph stopwatch, Languages - 4 languages menu (DE, EN, ES, FR), Depth meter, Button lock, Rotating bezel, Low battery warning, User replaceable battery, Menu based user interface, Water resistant to 30m (100ft), Backlight option for night use, Dot matrix display, Mineral crystal glass, Operating temperature -20 - +60 C (-5 - +140 F), Selectable metric, imperial units, Storage temperature -30 - +60 C (-22 - +140F), Electro luminescent backlight. Model Year: 2010, Product ID: 178628
