Strike King's SK Plus sunglasses are built with TAC (Tri-Acetate Cellulose) polarized lenses that deliver top-notch performance in all weather and humidity conditions. These scientifically engineered lens colors enhance the human eye’s ability to spot underwater structures and fish by improving sharpness and contrast. The SK Plus also incorporates APT (Advanced Polarized Technology), which blocks 100% of UVA and UVB rays for complete sun protection. State-of-the-art coatings provide a clear, non-distorted image, and the ridged lenses are scratch-resistant to further boost optical quality. See the difference for yourself!