Durable, corrosion-resistant Monel metal frame Non-slip, adjustable Rabalon nose pads Matte finish on front with high-gloss finish on temples Acetate temple tipsPolarizedPlusA 2 Technology blocks glare and boosts colors Scratch-resistant ST (SuperThin) Glass lenses Anti-corrosive spring hinges Saltwater-safe lenses and frame Maui Jim case and cleaning cloth included Inspired by Hawaiis official state gem, these Maui Jim Black Coral Polarized Sunglasses feature a rectangular, corrosion-resistant Monel metal frame with a saddle style single-bridge design. These Polarized Sunglasses showcase a matte finish on front and a high-gloss finish on the temples. Anti-corrosive spring hinges, acetate temple tips and adjustable, non-slip Rabalon nose pads ensure flexibility and a snug fit. Scratch-resistant ST Glass lenses are 20% lighter and thinner than most laminated glass lenses. All Maui Jim sunglasses feature patented, color-infused PolarizedPlus2 Technology, which blocks glare and UV rays from all angles, manages blue light, and boosts colors for unmatched vibrancy, clarity, and contrast. Each pair of Maui Jim sunglasses includes a case and cleaning cloth. How to choose your Maui Jim lenses: Neutral Grey offers amazing contrast and the highest available light production. Suitable for all light conditions, especially bright, direct sunlight. HCLA Bronze offers excellent contrast. Ideal for everyday conditions, from full sun to clouds. Great for those who prefer a subtle bronze hue for everyday wear.