*Free shipping on orders over $99

Free Shipping Policy

Free Shipping applies to all orders placed for $99 and above
(pre-tax value). Some restrictions apply:

  • Offer valid in the Lower 48 States only
  • Excludes Complete Bicycles, Framesets, and some other oversize items
  • Excludes certain sale items


Apparel > Accessories > Helmets > Helmets


With a dedicated approach to innovation, constant improvement and offering the best cycling equipment, Specialized has consistently offered refined designs and major leap forwards across numerous cycling categories. With the S-Works Prevail 3 Helmet the venerated R&D team out of Morgan Hill has combined those two approaches to build off the Prevail II Vent concept, yet consider virtually every aspect of the helmet construction and design to create perhaps the most comfortable, low profile, best ventilated road cycling helmet ever made while still maintaining and exceeding the highest safety standards in the bicycling industry. If you have never been all that excited about bike helmets before, Specialized has given you inspiring reasons to experience that level of enthusiasm with the incredible S-Works Prevail 3. The company views serious road cyclists and racers with a quiver of helmets, with the S-Works Prevail 3, S-Works Evade 3 and possibly a TT-helmet for racing against the clock. All-rounder ideal for even the hottest days. Aero road for longer days in the saddle in a group or when efficiency is premium. The true aero specialist's helmet. Your needs define your choices, but many cyclists will have two, for sure.

With the development of the S-Works Prevail 3, Specialized has rewritten the book on cycling helmet design by innovating beyond foam, creating a new internal "cage" system, collaborating with MIPS on a new application of the MIPS system, massively increasing air flow in a "traditional" road helmet, improving the fit and retention, while also making the Prevail 3 sleeker than it's already slim predecessor. Reinventing the impact energy management aspect has taken on several new thought processes and technologies beyond the high-level approach already in place. When a helmet is impacted, its job is to dissipate the energy of the impact. The conventional approach to helmet design is that more foam (EPS) creates better. In reality, even lighter weight and more responsive foams protect while still creating a firm structure. Simply put, there is too much energy localized at the point of impact. In working to reduce the energy and distribute the impact force, Specialized has long utilized an internal matrix inside the shell of some of their high-end road helmets, encouraging the EPS to disperse but still maintain a semblance of protection in case of a multiple impact accident. The polycarbonate shell offers the initial impact protection, the EPS absorbs and distributes, and the matrix holds the structure loosely together even if the shell partially detaches as it should. Then the company added the MIPS rotational force reduction system into their helmets for a different grade and level of rider safety. Throw in a great fit system as well as the ANGI emergency notification protocol option and the Prevail II Vent was a spectacular everyday road helmet. To create something better, serious innovation was required- and delivered upon.

Specialized's team utilized cutting-edge tools to achieve their mission: advanced solid modeling software, finite element analysis (FEA), computational fluid dynamics (CFD), state-of-the-art testing labs on multiple continents, and feedback from the best racers in the world. The first and most crucial direction of the Prevail 3's development impacted several focus zones at once. Introducing the new AirCage construction system. Woven aramid “cables” traverse the helmet and are anchored to carbon fiber side panels. Upon impact, the patent pending AirCage technology works as a suspension bridge and is designed to distribute localized forces throughout the helmet more effectively. The strength and structure is achieved in conjunction with the necessary longitudinal EPS ribs. Besides a weight reduction and better strength, AirCage eliminated the need for the standard, cross-helmet, air-blocking foam “bridges” from the center of the ribs, creating the ultimate in airflow. With a never-ending quest to push the limits of ventilation, the team effectively created thru-air channels that increase the surface area of ventilation by 24.5% compared to the S-Works Prevail II Vent helmet. The all-new S-Works Prevail 3 has the most ventilation area of any helmet Specialized has ever made. It is perfect for riders who value the comfort and thermoregulation benefits that superior ventilation delivers. It is the ultimate all-around helmet that excels in hot conditions, strenuous climbs, and mountainous stages.

The innovation and effectiveness doesn't stop there, nor does the drive for the best safety measures. The S-Works Prevail 3 features the release of ultralight and supremely comfortable MIPS AirNode technology. This system is integrated directly into the helmet padding, with a sleek low friction layer designed to dissipate rotational forces as only MIPS can. With Specialized’s proprietary development work, the team added perforations to maximize breathability, performance, comfort, and weight savings. Of course, as with any helmet, proper fit and adjustment is the foundation of all safety aspects. In conjunction with an improved Mindset fit system featuring shell depth adjustment, an occipital-based adjustment that offers more comfort and better interaction with glasses, while the superior Tri-Fix WebSplitter with lighter, more flexible straps combine to deliver the best fit possible. Along with the standard CPSC safety rating, the S-Works Prevail 3 also has received a 5-Star Virginia Tech® Helmet Rating, from the most experienced independent helmet safety lab in the United States. Ride comfortably, cooler, with great confidence while wearing the sleek and impressive Specialized S-Works Prevail 3 Helmet.

Return to Top

  • Lightweight all-around road cycling helmet with optimized construction for incredible cooling, fit, comfort and overall safety protection
  • Overall a very sleek helmet with a low profile and minimalist aesthetic concept with maximalist safety
  • Design and construction increases the surface area of ventilation by 24.5% compared to the S-Works Prevail II Vent
  • AirCage innovation increases airflow and is designed to distribute localized forces throughout the helmet at impact, sharing energy diffusion, mitigating the effects
  • Woven aramid “cables” traverse the helmet, are anchored to carbon fiber side panels within EPS liner
  • Precision, full-wrap polycarbonate shell for increased durability and premium finish
  • MIPS AirNode technology is MIPS most ventilation-focused solution with rotational impact protection
  • Adjustable Tri-Fix WebSplitter boosts comfort through personalized fit
  • Occipital-based adjustment optimizes comfort and compatibility with glasses
  • ANGI-ready Mindset Fit System and reaction for easy on-the-go fit
  • Earned 5-Star Virginia Tech® Helmet Rating
  • Sizes: Small, Medium, Large
  • Colors: Black, White, Vivid Red, White Sage Metallic, White Mountains, Hyper/ Dove Grey, White/Black
  • Weight: 281 grams (Medium, actual)
Return to Top
Helmets- Evade II, Prevail II, Echelon II, Propero III, Airnet
Helmet SizeSML
Head Circumference 51-56cm (20-22")55-59cm (21¾-23¼")59-63cm (23¼-24¾")
Helmets- Tactic 4, Gambit, Mode
Helmet SizeSML
Head Circumference 51-56cm (20-22")55-59cm (21¾-23¼")58-62cm (22¾-24½")
Cycling Shoes
Specialized Euro3637383940414243444546474849
Mens US4.2555.756.57.5899.610.611.512.251313.7514.5
Specialized Euro3536373838.53939.54040.54141.54242.54343.544
Womens US55.756.57.257.588.599.259.51010.510.751111.512
Sock SizeS M LXL
US Shoe Size4-67-910-1213+
Specialized Euro Shoe Size36-3940-4243-4546+
Mens Shorts, Bibs, Knickers & Tights
Mens Jerseys, Jackets & Vests
Mens Gloves
Middle Finger Length<7.6cm7.6-8cm8.1-8.6cm8.6-9cm9-9.4cm>9.4cm
Palm Length<10.8cm10.8-11.1cm11.1-11.3cm11.3-11.7cm11.7-12.1cm>12.1cm
Thumb Length<6.1cm6.1-6.4cm6.4-6.8cm6.8-7.1cm7.1-7.4cm>7.4cm
Palm Circumference<21.5cm21.5-22cm22-22.5cm22.5-23.5cm23.5 - 24.5cm>24.5cm
Womens Gloves
Middle Finger Length<6.4cm6.4-6.9cm6.9-7.4cm7.4-7.8cm7.8-8.4cm>8.4cm
Palm Length<9.3cm9.3-9.7cm9.7-10cm10-10.4cm10.4-10.8cm>10.8cm
Thumb Length<5.1cm5.1-5.4cm5.4-5.7cm5.7-6.1cm6.1-6.5cm>6.5cm
Palm Circumference<17.5cm17.5-18.5cm18.5-19.5cm19.5-20.5cm20.5-21.5cm>21.5cm
Return to Top