evo.com | Smith Bike Helmets > The Smith Persist MIPS Bike Helmet provides all the coverage you need on fast-paced gravel rides. The dial adjuster creates a perfect fit and Koroyd(R) and MIPS bring top-tier protection from impact and rotational forces. 21 fixed vents and the AirEvac(TM) ventilation system keep your head cool and glasses fog-free so you and your gear can perform their best on every ride. Lightweight In-Mold Construction Adjustable Dial Fit System MIPS System Equipped In a helmet with the MIPS Brain Protection System, the shell and liner are separated by a low friction layer that allows the helmet to slide relative to the head in and angled impact. CPSC and CE EN 1078 Certified 21 Fixed Vents | Smith Persist MIPS Bike Helmet 2025 - Medium in Navy