The Upgrade Kit No 7 is an innovative corrective lens adapter specifically designed for sports glasses. With this transparent RX adapter, users can customize their glasses to ensure optimal vision during athletic activities. The product is made from high-quality plastic and offers a durable solution for anyone looking to integrate their prescription into their sports eyewear. The adapter is suitable for adults and fits perfectly with cycling glasses, making it ideal for cyclists. The Upgrade Kit No 7 combines functionality and comfort to provide an uninterrupted sports experience. It features a transparent design that seamlessly blends into the overall look of the glasses, making it suitable for both women and men. With this accessory, users can ensure they have the best visibility even during fast movements and changing light conditions.