This helmet features unique collapsable design, allowing it to reduce size by 45% in just one second so you can store it in your bag. Is it safe, meeting impact absorption certifications (EN1078 and CPSC) and lightweight, clocking in at 0.8L LB. The reflective back band provides high visibility without dazzling, while leaving room for the rear adjustment system. The helmet is also ventilated through concealed holes to maintain airflow.