Maui Jim Sunglasses feature PolarizedPlus 2 technology, which wipes out glare and stokes the color with a patented multi-layer design. The lenses feature three rare earth elements, which maximize the transmission of the colors your eyes see naturally. The result is visual acuity, contrast, and color that is unrivaled.CATEGORY 3 - SUNGLASSES. High sunglare reduction. Good UV protection.