The Oakley Exchange Sun sunglasses in satin black are a universal fit rectangular frame crafted from Oakley BiO-Matter a material made from bio-materials having at least 56% bio-based carbon content. This gender-neutral style features Unobtainium nose pads and ear socks which provide comfort and retention for a non-slip grip. Fitted with prizm grey polarised lenses, these sunglasses are an ideal choice for an active lifestyle outside as they will provide UV protection whilst enhancing the colour and contrast in the environment you are in whilst cutting out unwanted sun glare.