This sunshade lens is made of high-quality PC material, which is resistant to high temperatures and not easily deformed. It comes with a block light barrier, which solves the problem of sunlight irradiating the eyes through the gap at the top of the visor. The price drops from $19.99 to $16.39 to just $8.19 when you apply the code "YPZELDQR" during checkout. Shipping is free for prime members or on orders over $25.