Sized for a 22.4 to 22.8 inch (57-58 cm) head circumference, an M fit, this 3/4 open face motorcycle helmet weighs just 2.6 pounds, keeping it light for everyday rides. Its sturdy ABS shell combines with soft EPS foam and a skin-friendly liner for DOT-approved protection that doesn't feel bulky. The large clear visor blocks wind, sand, and flying debris when down, and lifts for extra airflow, while its wide-angle shape opens up your field of view and cuts blind spots so you notice traffic sooner. Vents across the front and top move air through the shell to reduce wind noise and keep your head cool in warmer weather. The liner detaches and washes on its own, and balanced weight distribution keeps this matte black helmet comfortable for commuting or weekend dirt bike trips.