The Revel’s confident style and breezy ventilation combine in a compact design that complements nearly any ride. Some of Giro's best features, like In-Mold construction coupled with the ease and comfort of their Acu Dial fit system, offer the versatility you need to ride it all, from downtown streets to twisting climbs to singletrack trails. This is one of the best performance values in the Giro line. Revel MIPS options are equipped with the Multi-Directional Impact Protection System. MIPS can provide more protection in certain impacts, and this added technology does not compromise fit, ventilation or style.