We've taken Heat Wave's heritage design features and reimagined them with a race inspired, smooth profile and premium fit. The Quatro is a comfortable subframe that is covered by a striking single shield lens and completed with a contrasting metal brow accent. Lens Technology 1.9mm thick Polycarbonate lens that meets or exceeds impact requirements for Z80.3 standards, injection molded to the highest standards and tested to ensure optimal clarity, along with color and light transmission standards. We use only the highest quality polarizing filters on our lenses for optimal glare reduction and supreme clarity *Available in both non-polarized and polarized options* Lenses are UV400 - 100% UVA / UVB blocking Meets Z80.3 Standards Silver Lens VLT = 9% / Cat 3Silver Polarized Lens VLT = 9% / Cat 3