abonet+JARI Bead Inner (Soft) Retail Price: ¥5,720 Used 1-2 times and stored at home. Size M 50-56 cm This is an inner cap from the abonet+JARI series, jointly developed with the Japan Automobile Research Institute (JARI). It uses polyethylene beads and offers high impact absorption and breathability, providing excellent comfort. It's a reliable protector that safeguards your head from daily life's dangers inside your hat. Size can be adjusted with the stopper at the back. Please use it with deep hats like knit caps or watch caps. *Because it is about 1cm thick, please prepare an outer hat that is one size larger than usual. ● abonet+JARI Bead Inner The cushioning material made of polyethylene beads, developed by abonet and JARI, reduces the "risk of serious injury" by approximately 60% (※) by arranging polyethylene beads with a diameter of about 1cm in the same direction, resulting in high impact absorption performance. In addition, the bead shape with holes in the center also provides moderate breathability and elasticity. ※The hard type reduces the risk of serious injury by about 80%, and the soft type by about 60%.