This blog is written by author Sachiko who is not a native speaker of English, so it may be hard to read. It is translated from the summary of Japanese page; http://akitaodatelifejp.hatenablog.com/

Windpants

I wear it over the pants not to get dirty when washing my truck or doing farmwork.

It is a water repellent finishing, lightweight, and difficult to get sweaty.

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