Wind sock

Custom logo windsocks were made of full color polyester that made for agricultural spraying application and airport. ...

USA flag Windsock is made with great quality nylon and features the body as the blue canton of our flag with the stars silk screened on while the tails consist of the red and white stripes of our flag.  
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The wind direction indicators are not particularly functional and mostly for decoration. And they can be used as a basic guide to wind direction and speed.
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Printed logo windsocks typically are used at airports and at chemical plants where there is risk of gaseous leakage. They are sometimes located alongside highways at windy locations.
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Airport windsocks are made of waterproofed synthetic material and are double stitched at all seams, and UV resistant. ...

Custom brand windsock is normally indicated by the windsock's angle relative to the mounting pole in low winds, and the windsock droops, in high winds it flies horizontally. 
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