UA Storm Polarized Technology: cuts glare, enhances color retention, and repels water, grease and mud for easy cleaning and clear vision. ArmourSight lens technology delivers up to 20% more undistorted peripheral vision & are up to 10X stronger than ordinary polycarbonate lenses. Ultra-light ArmourFusion frames are built from a combination of titanium & Grilamid for superior strength & flexibility. Multiflection lens coating guards against scratches & smudges. All Under Armour Performance Eyewear lenses block 100% of UVA, UVB & UVC rays. Fit: Medium. Lens: 51 mm. Nose Bridge: 18 mm. Temple: 138 mm.