The giro synthe helmet the synthetrade is the pinnacle of road helmet design combining the performance gains of aero efficiency and light weight with great cooling power to enhance rider comfort and efficiency the compact form slips through the air with ease across multiple yaw and head angles and offers greater cooling power than the aeontrade key features include the roc locreg air fit system with 2 way fit tuning and aero mesh panels with a dedicated port for securely docking