The subject innovation will take a lot of first impact of the see-through window in the wind raised when gritty to describe the conventional helmet hayeoteul station raise the viewing window of the helmet on a hot summer relates to a production motor helmet (helmet) for a motorcycle (see Fig. 7) helmet the hanging neck becomes shakes aside behind the high-speed running was not a problem at all.; Meurosseo up so close to the outer surface of the body through window to resolve it was not see-through window is affected by the wind. So the driver was able to be a more relaxed driving.; ※ Leave found that the first applicant and the same person in a helmet-speed applications.
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