Costa Del Mar Bloke 580G Polarized SunglassesCosta Del Mar Bloke 580G Polarized Sunglasses are new for 2017! These XL frame sunglasses will fit larger head sizes comfortably. They look amazing and perform even better! Blokes feature heavy duty TR 90 bio resin frames that are extremely durable, rugged and chip proof. They are infused with Hydrolite in the nose and temple pad areas so they stay on your face, even when wet. The integral hinges are strong and will continue to keep your glasses