• SHOCK-ABSORBING & VENTILATION - ABS shell for durability and protection. Complies with the U.S. CPSC and ASTM Safety Standards. Keep the head breathable and dry through 11 ventilation holes to form airflow and not sweat in hot weather.
• EXTRA REMOVABLE LINING - This skates helmet's interior pads are removable, which is washable and quick-drying.
• DOUBLE ADJUSTMENT - Adjustable head circumference and chin strap maxmize the best fit. Chin padding for added comfort.
• WIDE RANGE of USES - Suitable for various outdoor sports such as skateboarding, skating, scooter, rollerblade, biking, and so on.
• HOW TO MEASURE A PROPER HELMET - You can wrap a flexible tape measure around the largest part of your head as shown, or, wrap a rope around your head and measure the length of the rope with a ruler and choose based on the size you get.