Tifosi Tyrant Polarized Photochromic Sunglasses for $59.93 shipped.  Here is a screenshot for your reference.  It features Fototec photochromic lenses that automatically adjust tint according to light conditions with lenses darken in bright light and lighten when there's less light. Its polycarbonate lenses are 20 times more impact resistant than glass and one-third the weight. [...]