Meet the all-new Propero 4 helmet—it brings the aero advantages of the S-Works Evade 3 together with the ventilation of S-Works Prevail 3, all with the comfort and confidence Specialized helmets are famous for, earning the highest 5-Star Virginia Tech helmet rating. Every detail of the Propero 4 was created with our equation for speed in mind.

Aerodynamics + Ventilation + Lightweight = Fast.

• Mips Evolve Solution is a low-friction layer that allows a sliding motion of 10 to 15mm in all directions. Studies indicate that this reduces some of the rotational forces transmitted to the brain during angled impacts.
• Propero 4 earned the highest 5-Star Virginia Tech® Helmet Rating from internationally renowned Virginia Polytechnic Institute and State University.
• FS3 Fit System & Occipital Base Adjustment optimizes comfort by personalizing fit to individual head shape, and helmet angle can be adjusted for compatibility with glasses.
• Adjustable Tri-Fix web splitter combined with thin 10mm webbing for increased comfort.
• Dedicated sunglass storage maintains a secure fit and keeps eyewear out of the way when needed.
• Micro Channeling & large rear-end vents for increased ventilation.
• S-Works Evade 3 front-end design language for enhanced Aerodynamics.
• Precision, full-wrap polycarbonate shell for increased durability and premium finish.