Ryders Seventh Nxt

3 in 1 NXT Varia antiFOG: NXT: Lens material that provides superior optics originally engineered for fighter jet canopies! Varia: Fastest photochromic (transition) technology that changes the colour of the lens depending on light conditions. Our clear lens changes to grey. Yellow changes to brown. Rose changes to copper. AntiFOG: military-grade fog resistance.