www.safetyandhealthmagazine.com/articles/polarized-glasses-2

Polarized glasses

September 1, 2011
4X4 Polarized protective eyewear is an outdoor eye protection solution for workers who face daily glare from light bouncing off flat, reflective surfaces. The glasses exceed ANSI Z87.1+ and CSA Z94.3 standards, have a lightweight frame with dual wraparound polycarbonate lenses, and are designed to look like fashionable sunglasses.

Gateway Safety Inc.