Magnetic Light-blocking Goggles: The goggles can protect your eyes from sunlight and also shield your face from dust, insects, and harsh weather conditions. With its magnetic feature, they can be easily removed and flipped to attach onto a helmet when not needed. Comprehensive Safety Protection: Utilizing integrated molding technology with high-density lightweight EPS foam, the helmet effectively absorbs impact energy, significantly reducing the risk of injuries in the event of an accident. The bright LED taillight warns vehicles from behind, ensuring a safe distance. It offers three lighting modes - steady, slow flashing, and fast flashing, to keep you safe during night rides. Breathable and Lightweight: The helmet is designed with special aerodynamics to reduce air resistance, featuring multiple ventilation holes to prevent discomfort from excessive sweating. The lightweight and detachable inner lining make the helmet weigh only 300 grams/10 ounces, ensuring it doesn't burden the rider's neck. Enhanced Comfort and Convenience: The quick-release buckle allows for easy wearing and removal of the helmet, saving you time and hassle. The chin strap with cushioned padding adds extra comfort and prevents chafing, ensuring a snug fit. You can also detach the chin padding for easy cleaning. Fits Most Adult Riders: This adult cycling helmet is designed to fit head circumferences between 22 to 24 inches (57 to 61 centimeters) and comes with an adjustable knob for a better fit, ensuring maximum comfort and safety during your cycling adventures. It comes with a 1-year after-sales quality assurance service, providing you with peace of mind for your purchase.