This professional adult ski helmet is specifically designed for skiing enthusiasts, featuring advanced safety technology and ergonomic design High-strength Protection Structure: Outer shell made of impact-resistant ABS material, inner layer equipped with high-density EPS cushioning, effectively absorbs impact energy, certified by international safety standards to provide solid protection for your skiing adventures Intelligent Ventilation System: Carefully designed ventilation hole layout allows adjustable airflow as needed, prevents lens fogging, keeps head dry and comfortable, maintaining optimal condition even during intense exercise Perfect Fit Experience: Built-in precision adjustment system allows easy rotation for accurate size adjustment, combined with soft memory foam lining to ensure stable fit without shaking Fashion Meets Function: Minimalist solid color design with streamlined appearance, multiple color options to meet different aesthetic needs, pre-installed audio pockets let you enjoy music while maintaining safety awareness Wide Range of Applications: Suitable for alpine skiing, cross-country skiing, snowboarding and various other skiing forms, providing excellent protection for both beginners and professional athletes Easy Cleaning and Maintenance: Removable lining design facilitates cleaning and maintenance, extends service life, keeping your ski equipment in optimal condition at all times