Polarized Sport Mens Sunglasses for Baseball Fishing Golf Running Cycling. polarized lenses, made of Polaroid polarized plastic sheeting, to reduce glare caused by light reflected from non-metallic orologi replica svizzeri surfaces such as water (see Brewster's angle for how this works) as well as by polarized diffuse sky radiation (skylight). This can be especially useful to see beneath the surface of the water when fishing.