Briko Load Modular is a cycling sunglasses model built for mountain biking. It features a modular design that converts between full-coverage protection and a lightweight, ventilated configuration and includes an optical adapter for prescription use. Key attributes: Brown | Brown donkey | Nylon | Maximum protection from light and debris | Well-ventilated configuration for high-output riding | Comfort-focused for prolonged wear | Optical Adapter for prescription lenses | Transformable modular parts | Quick conversion between configurations | Modular construction | Lightweight design | Designed for MTB use | Dimensions & fit: One size | Comfortable fit for prolonged use | Composition & care: Nylon 70% | Polycarbonate 30% | Polycarbonate lens