Aerodynamic helmets are specially designed headgear that reduce air resistance during high-speed activities, such as cycling or racing. They feature a streamlined shape that helps to minimize drag, allowing athletes to maintain higher speeds with less effort. These helmets often include ventilation systems to keep the wearer cool while still prioritizing aerodynamics. Many professional cyclists and triathletes use aerodynamic helmets to enhance their performance in competitions. The design typically incorporates a smooth outer shell and a snug fit, ensuring that the helmet stays securely in place. Brands like Giro and Specialized are known for producing high-quality aerodynamic helmets tailored for serious athletes.