Predator DH6 Matte Blue W/Black Stripes Skateboard Helmet Brand: Predator- Model: DH6 - Aerodynamic Full-Face Protection for Racing and Downhill Color: Blue Sizing: ONE SIZE XS to L (53cm-61cm) (21 to 24inches) - measure head diameter around your forehead. Weight: 940 grams Standards and Certifications: The DH6 meets CPSC standards and is CE-1078 certified.