Bicycle helmet for every environment. Whether you ride the road or cycle on mountain bike, this helmet is a great companion for beginers and experienced cyclists. Thanks to 24 ventilation openings, helmet can preserve optimal head climate. Using the practical IAS-3D size adjustment, helmet is providing you with maximum safety and comfort. Advanced fit systems ensure perfect adjustment and mobility in every move. With built-in insect net you will be protected against unwanted intruders. Equipped with triangle LED, allowing you to ride the city at dawn or dusk. Size: 52-57. Package does not contain light.