Great style meets cool comfort. The all-new Coast features an adaptable design that's an easy match with what you wear and how you ride. This model features MIPS (Multi-Directional Impact Protection System) which can give an additional measure of protection in certain impacts. Large air vents keep you cool, and a quality Polycarbonate Shell gives it a lightweight feel. The one-size-fits-all ErgoDial Fit System allows for one-handed adjustment- just press a button and turn the dial, simple as that.