The molecular structure of the silver halide molecules embedded in the lenses changes when exposed to UV rays. The lens tint therefore varies automatically in response to light intensity within a 10-second period.
Vented lenses allow a better airflow to minimize fogging.
Hi-Tech TR-90 Grilamid
TR-90 nylon frame is impact resistant, very lightweight, flexible in a wide range of temperatures, and hyper durable on top of offering exceptional resistance to sunscreens. It goes beyond expectations.