Horsefeathers Keaton Goggles - brushed black / mirror blue 2021 FRAMES: High quality handmade acetate goggles Solid 5-eye joints Metal core reinforced side Frames shape with curvature 6 for easy grinding of dioptric spectacle lenses GLASSES LENSES: High quality polarized TAC lenses Thickness 1.1 mm 100% UV protection Protects against glare, improves contrasts, maintains color fidelity DIMENSIONS: eyepiece diameter 56 mm,