Features of the POC Sports Omne Air MIPS Helmet Slim profile Adjustable 360? Fit system Latest Technology from brain protection specialists MIPS enhances rotational impact protection Lightweight EPS liner gives optimized protection PC shell enhances the structural integrity of the helmet 360? Adjustment system makes it easy to find a secure, comfortable Fit Easily store sunglasses on the helmet mid-ride Helmet's Slimmer profile helps keep weight down