NoIR fit-over style filters can help people minimize eye discomfort and maximize visual resolution. Filter shade number 20 - light gray - provides 100% ultraviolet protection. These sunglasses allow in 63% of visible light. This light gray filter relieves indoor glare and can be quite helpful under fluorescent lighting.
This standard large fit-over style frame may be worn over most prescription frames or worn alone. The entire body of these fit-over sunglasses are made out of this same filter color. It features side shields with temple lapped construction to keep out extraneous light and wind and it has curved temple pieces for a non-slip fit.
Large size (#L) measures 150mm x 148mm x 56mmm (5.91" x 5.83" x 2.21").