spare lens FORCE CALIBRE, photochromic

polycarbonate lens, UV 400
filter category 0-3, transmittance 13-80%
photochromic lens – darken and lighten depending on
the intensity of ultraviolet radiation (at a higher incidence of light the lenses darken a
inverted at lower light intensity automatically lighten)
packed in polybag
packaging and sale of 1 pair