Alba Optics STRATOS - BLK / VZUM F-LENS BTL (STRATOS-BLK-BTL) are mask sunglasses made in Italy for ultimate visual experience in all weather conditions and on all terrains. They feature lightweight 24g TR90 adjustable frame, photochromic F-LENS VZUM ™ ultra-lightweight polycarbonate interchangeable lenses with central vent, telescopic temple tips for best fit and wearer comfort.Made in Italy- Color: black- Material: tr90- Lens: blue green photochromic- Shape: Mask- Size: eye 142mm / bridge 32mm / temple 115/125mmCheck Lens specs and simulation