Chief.JI'm confused as well. The description makes out that they would all be Mazzucchelli CR-39 polarized lenses, but when ordering, only the Dark Horn and Light Horn ones show up as polarized options.
HanHyoJooThese are not produced in the USA. If you're looking for MIUSA eyewear brands (there aren't many) you should check out Shuron, American Optical, and Randolph.