The Define sunglasses ensure performance on and off the bike.With a style influenced heavily by POC’s active heritage, the Define sunglasses are ideal while riding MTB or while in urban settings.Clarity lens technology developed in partnership with Carl Zeiss, the optical industry leaders, feature in the Define sunglasses. Clarity lenses control the color spectrum for enhanced contrast and color definition for clearer vision in the environments you ride in. A lightweight and durable grilamid frame features on the Define glasses. A minimal frame on the bottom of the glasses reduces the visible frame for the wearer, supporting clearer vision.Snap in hinges can pop out in a fall, minimizing damage to the frame and prolonging the life of the sunglasses. Rubber grips on the nosepiece and the temples ensure the glasses sit firmly in place even during strenuous activity. Key Features: Clarity lens technology,Lightweight and durable grilamid frame,Rubber nosepiece and temples stay grippy even when wet,Snap hinges,Complete UV protection (UV400),Corrective optical lenses will fit this frame.