PC Lens: Polycarbonate (PC) lens with antiscratch and wearresistant properties for durable eye protection during activity. Micro Fan: Builtin micro fan helps prevent lens fogging, keeping vision clear in variable conditions. 2 Interchangeable Lenses: Includes two lenses that can be swapped to suit different lighting and environments. EVA Cushion: Cushion pad made of EVA provides a soft, protective seal around the eyes for comfort during extended use. Key benefits and features Durable lens material with antiscratch and wearresistant performance. Fog prevention maintains clear vision without frequent lens wiping. Flexible lens system allows quick transitions between light conditions. Soft EVA cushioning enhances comfort and helps protect the eye area. Specifications and materials Lens material: PC (polycarbonate) with antiscratch and wearresistant treatment. Cushion material: EVA foam for comfort and protection. Use scenarios Outdoor cycling or running in changing light: swap to the lens suited for daytime or low light to maintain visibility and reduce glare, with fog prevention for consistent clarity. Indoor training or gym workouts: keeps lenses clear during rapid movements, while the EVA cushion provides a comfortable fit. Outdoor winter sports or coldweather activities: use the interchangeable lenses to optimize visibility in bright or overcast conditions and rely on the fogresistant design for consistent vision.