The result of innovative materials and a "function first" focus, HARD KORE™ is the ultimate performance sunglass. A testament to the company’s commitment to Kore Performance™ design and engineering, HARD KORE™ is the next evolution of the brand’s award-winning KORE™ model. This fresh design is lightweight, incredibly durable, and intuitively integrates with the natural form of the wearer’s head shape while accommodating different facial features. This unique piece features a Matte Black Hard Kore frame that is highlighted by white logos, as worn by Jamie Mitchell during his tenth consecutive win in the Molokai-2-Oahu Paddleboard World Championship. Hard Kore™ Also Features: Variflex™ ear grips and nose pads that provide maximum fit and safety A midsize unisex frame that is a great fit for both men and women Razor sharp clarity provided by impact resistant, glare reducing SR-91 lenses A micro-fiber cleaning bag and a protective case Patented by Kaenon, SR 91® is a high performance, durable, lightweight, and impact resistant lens material. This unique material offers razor sharp clarity, and with the addition of glare 860®, its polarized form, SR-91® boasts superior glare reduction. It is trusted by the world's top athletes and is good for extreme sports.