Specialized S-Works Prevail HelmetThe S Works Prevail 3 is the ultimate all around helmet, engineered for superior ventilation and comfort in hot conditions, strenuous climbs, and mountainous stages. By eliminating air blocking foam "bridges" and introducing the innovative AirCage technology, it sets a new standard for cooling performance and energy management. Achieves the most ventilation area of any helmet Specialized has ever made, increasing the surface area by 24. 5% compared to