Size: Round S (51-56cm) This is a brand new, unused S-Works Evade 3 Red Bull - BORA - hansgrohe team edition (2025), the world's fastest helmet, combining aerodynamic performance and ventilation. ※ The following is an excerpt from the SPECIALIZED website description: ■ Intended Use - Road Racing ■ Aerodynamics - Specialized's most aerodynamic helmet ■ Ventilation - 10% improvement (compared to the previous model) ■ Virginia Tech Helmet Rating - Five-star rating, the highest possible ■ Fit System - Adjustment at the lower rear of the head ■ MIPS - Node Air integrated pad