Nutcase Mellow Swirl Matte Street Helmet, Medium No pinch Fidlock magnetic buckle for one-handed operation Adjustable and removable spin dial gives a snug, comfortable fit, Deluxe soft chin pad for extra comfort Durable ABS shell, Protective EPS inner foam lining, 11 vents as well as ventilation grooves in the EPS Extra sets of foam pads for a perfect fit 360 degree reflectivity 360 DEGREE REFLECTIVITY from logos, straps and our spin dial get you seen at night and a DETACHABLE VISOR keeps the sun and rain out of your eyes MAGNETIC BUCKLE and a soft chinstrap makes one handed operation easy and means no pinching of your neck ABS shell with EPS inner foam lining meets both CPSC (for cycling ages 5+) and ASTM-F1492 (for skateboarding & trick roller skating) certifications 11 vents plus interior air channels move air around your head keeping you cool as well as looking great Adjustable spin dial (which is removable) and two sets of foam pads work together for a perfect fit