These flags were developed specifically to tell hang glider pilots the wind direction under all wind speeds. These flags, developed by hang glider pilot Bob "Diver Bob" Maloney, have been tested in real world (hang glider flight park) conditions and found to be the most reliable indictors of wind speed and direction available, even in the lightest conditions.

The color scheme used allows pilots to determine the wind direction and speed unambiguously, with bright colors against a dark background. The flags rotate with the slightest breeze unlike wind socks, that do not perform at low wind speeds.

The materials are long lasting, allowing flags to be left out for two years without replacement of the flag material. But the construction also allow the flags to be easily put up and brought down with minimal effort.

These flags can withstand 50+ mph winds with no ill effects.

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To purchase one of these flags, go here.