Description: Professional Grade: Designed specifically for skateboarding enthusiasts, this adults helmet offers reliable security for both men and women during activities like skiing and roller skatingConstruction: Made from quality ABS, the black skateboard helmet effectively absorbs impact to guard you from injuriesComfortable and Breathable: Featuring multiple ventilation holes, the bike helmet ensures breathability, keeping you comfortable during strong physical activitiesAdjustable Fit: Equipped with an adjustable strap, this Bicycle helmet can be easily tailored to fit, ensuring a snug and secure fit for adultsVersatile Use: Roller skating helmet is ideal not only for skateboarding and inline skating but also suitable for other outdoor activities such as skiing and cycling Size Chart: Suitable for head circumference 53cm-58cm/20.87inch-22.83inch Package Includes: 1Skateboard Helmet for Adults Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.