Maui Jim's Guardrails Polarized Sunglasses deliver sophisticated style and all-day comfort. Part of the MauiFlex memory metal collection, these sunglasses feature a proprietary material that "remembers" fit and shape. The double-bridge, modified aviator design is flattering while the adjustable, non-slip Rabalon nose pads keep sunglasses in place. All Maui Jim sunglasses feature patented, color-infused PolarizedPlus2 Technology, which blocks glare and UV, manages blue light, and boosts colors for unmatched vibrancy, clarity, and contrast. A case and cleaning cloth is included with each pair of sunglasses. PolarizedPlus2 Technology blocks glare and UV Boosts color for incredible clarity and contrast MauiFlex memory metal frame Adjustable, non-slip Rabalon nose pads Saltwater-safe lenses and frame Includes Maui Jim case and cleaning cloth About your Maui Jim lenses: Neutral Grey offers amazing contrast and the highest available light production. Suitable for all light conditions, especially bright, direct sunlight. HCL Bronze offers excellent contrast. Ideal for everyday conditions, from full sun to cloudy. Great for those who prefer a subtle bronze hue for everyday wear.