Same fabric as cycling jerseys, but lower cost and higher visibility -- hi-viz clothing mandated by law for construction workers walking on roadways. They come longer than cycling jerseys, so cut off the front, turn up the back, run three seams, and you have an ANSI hi-viz mesh cycling jersey for under $20.


Comfortable, conspicuous, and cheap by joshua_putnam, on Flickr

Hi-Viz arm warmers with reflective trim make hand signals much more conspicuous, day or night -- this is what passes for daylight this time of year around Seattle.


Rainy Day Conspicuity - Front by joshua_putnam, on Flickr