Prevail 3The Specialized S Works Prevail 3 helmet is perfect for riders who value performance, comfort, and superior ventilation. It is the ultimate all around helmet that excels in hot conditions, strenuous climbs, and mountainous stages. With a never ending quest to push the limits of ventilation, we eliminated air blocking foam bridges from the center, effectively creating thru air channels that increase the surface area of ventilation by 24. 5%. Woven