As evidenced by the Giro Hex Helmet, protection doesn't have to break the bank. The Hex is the ideal all mountain helmet with protection and comfort rolled into one package. To start, Giro's In Mold construction uses a hard, polycarbonate shell fused to an EPS liner to provide protection from impact. It wraps around lower at the back to protect the occipital bones and then rises at the sides to provide open sight lines. To keep your head cool on the long uphill hauls, the Hex has 21 large vents that create an effective wind tunnel through the helmet. The P. O. V. visor is adjustable, sans tools, for optimal protection from harsh sunlight. Using the RocLoc 5 adjustment system, you're able to adjust the Hex's fit both horizontally and vertically, on the fly if necessary.