Ventilation System Equipped with 16-20 air vents, this helmet offers excellent ventilation, keeping the head cool during rides. Certified Safety This helmet meets the ce certification standards, ensuring maximum safety for teenage cyclists. Ultralight Design The WEST BIKING Bicycle Helmet is designed for optimal comfort with its ultralight design, making it perfect for long rides. Adjustable Size With a size range of 48-52cm, this helmet is adjustable to fit both boys and girls, providing a secure fit for all. Lightweight Material Made from high-quality EPS material, this helmet is both lightweight and durable, offering protection without adding unnecessary weight.