MSR? Xpedition ADV Helmet w/MIPS Medium Orange

Aerodynamic poly alloy plastic shell design for light weight and strength technology between the comfort foam and the EPS liner Compound-curved, scratch-resistant, and optically correct face shield Removable shield to allow open-face riding and use of goggles For proper fit and size measure the circumference of your head 1" above your eyebrows and around the largest portion of the back of your head