The nike run x2 sunglasses are the ultimate running sunglasses they are made with a lightweight adjustable frame for personalized comfort on the track trail or road secure wrap temples provide a snug fit over any distancepro cut lensexpands coverageadjustable ventilated rubber nose bridgecustomized fit improves comfort and reduces fogginginterchangeable lensesmatch any light conditionlightweight nylon framefor comfort and durabilityadjustable secure wrap templesfor a customized fit and max