The Rally WaveCel Mountain Bike Helmet is 5-star rated by Virginia Tech and features updated, lighter and cooler WaveCel safety tech. You'll love how easy it is to dial in the perfect fit with a BOA Fit System, lay-flat camlock straps, and a Fidlock magnetic buckle. Plus, the goggle friendly three-position visor has built-in sunglass storage and the removable Blendr mount makes it easy to mount a Trek light or GoPro.Plus, the deeper rear coverage offers additional protection, and two front-facing vents are strategically placed to offer more airflow to make Rally WaveCel feel cooler and look the part as well.