The Triple 8 Darklight Reflective Gotham Dual Certified Skateboard and Bike features Stealth Reflective Technology coating that provides high visibility to cars for night riding. The helmet color is a dark grey in most lighting, but the special reflective coating reflects a bright silver color from headlights. Dual-certified for both bike and skate, and the helmet's innovative Conehead EPS liner offers additional protection with collapsing cones that act like a crumple zone to absorb the energy from a crash and spread the force sideways within the helmet liner. An ABS shell, with an urban profile and subtle brim, features Triple Eight logo vents for maximum airflow. Ideal for biking, skateboarding, rollerblading, roller derby, and commuting, the helmet complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older and ASTM F-1492 Skate safety standards. Includes two sets of removable, washable terrycloth Sweatsaver Fit Pads, an adjustable dial system for customizing the fit. Available in three sizes: Size XS/S fits 18.9 – 21.3 in (48– 54 cm), S/M fits 21.7 – 22.8 in (55 – 58 cm), L/XL 23.2 – 24 in (59 – 61 cm). To determine proper size, measure using a soft measuring tape or string. Manufacturer’s 180-day limited warranty.