Features:- Essential, practical and comfortable sunglass for prescription lens wearers- Interchangeable twin-lens with large surface area to cut wind impact- Grilamid TR90 robust frame with Megol® rubber on all contact points- RW - Multi layer mirror coated lens cuts glare and increases contrast- Scratch resistant IDRO lens, will repel water and dust to optimize vison- Supplied with spare clear polycarbonate lens, thermoformed protective case and cleaning cloth