Horsefeathers Keaton Goggles - matt black turtle / gray 2021 FRAMES: High quality handmade acetate goggles Solid 5-eye joints Metal core reinforced sides Curved shape 6 for easy sharpening 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,