POC DO Half Blade Spare Lens, Spare Sunglass Lenses TAKE THEM OFF ROAD: Developed for road cycling and is injected in Grilamid for low weight and durability OPTIMAL FIELD OF YOU: Features the superior optical performance of Carl Zeiss lenses, treated with Ripel, for clear vision and easy cleaning SHIELD FOR YOUR EYE: Perfect for sunny and partly cloudy weather and has the VLT (Visible Light Transmission) range of 10-90% COLOR JUST FOR YOU: Available in seven different color combinations