Alpinestars S-R7 Photochromic Face Shield Replacement photochromic face shield for Alpinestars S-R7 Helmets. Shield transitions from clear to tinted when exposed to sunlight. Features: Shield tint is photochromic with a visual light transmission (Vlt) value of 71-20, perfect for use on bright sunny days Prepared for anti-fog Pinlock lens (sold separately) Posts for tear-offs (sold separately) Anti-scratch coating on the outside and anti-fog coating inside Offers protection from UV rays Easy to change Fitment Note: This face shield will fit both Alpinestars S-R7 and Supertech R10 Helmets. However, the pinlock lens and tear-offs that fit this face shield are unique to the S-R7 and will not fit a Supertech R10 face shield.