This multi-functional sports helmet incorporates advanced safety technology specifically engineered for various extreme sports and daily activitiesThe high-strength ABS shell effectively disperses impact force, working in tandem with high-density EPS cushioning lining to provide dual-layer protection during accidents Thoughtfully designed ventilation system ensures wearing comfort, with 16 scientifically placed air vents maintaining optimal airflow and keeping the head dry Adjustable head circumference system allows perfect fit for different head shapes, featuring simple and quick operation to ensure stability during movement Matte surface finish not only offers stylish appearance but also provides scratch-resistant properties, with multiple vibrant colors to suit diverse aesthetic preferences Suitable for both children and adults, this helmet serves multiple purposes from street dancing to mountain biking, rollerblading practice to skiing adventures Compliant with safety certification standards, delivering reliable protection for every sports experience