Helmets are not only safety equipment but have also gradually become elements of sports and street fashion. Modern helmet design emphasizes personalization, color matching, and innovative styling. Different brands release limited editions and co-branded models, making helmets trendy accessories. Especially in the motorcycle community, the combination of helmets and clothing has formed a unique style. Meanwhile, some transparent or LED-lit helmets not only ensure safety but also make nighttime sports more technologically advanced and aesthetically pleasing. Helmets are evolving from mere protective tools into fashion items that showcase personality and lifestyle.