1. Bicycles are widely used, from young people commuting to school to working adults. The more time and frequency you ride, the more likely you are to have an accident. Wearing a helmet is very important to protect yourself. 2. Simple and sleek design: Featuring ventilation performance, the 18ventilation system allows ample airflow from the front and releases cool air from the back of the helmet. Large vents reduce discomfort and heat buildup. An attractive helmet that is ultralightweight and minimizes fatigue. 3. Lightweight softshell model: Through meticulous material selection, we achieve both exceptional strength and remarkable lightness. With a total weight of 276g, it reduces pressure on the head, ensuring comfort during extended use. 4. impact resistance: ISAK helmets are crafted with onepiece molding technology, ensuring seamless fusion to prevent separation of the protective layer and cover upon impact, enhancing safety. The outer shell, made of polycarbonate resin, effectively disperses initial external force during impact. The internal shockabsorbing Styrofoam cushions falls, safeguarding the rider's head from harm.