Crash-proof caps liners are an essential addition to any safety gear collection. These practical hat liners are designed to withstand significant impacts, offering peace of mind to users in high-risk occupations. The insert liner is built to last, ensuring that your head remains protected during intense activities. Its compatibility with multiple hat types makes it a versatile . Features -Color:Grey -Material:PE -Size:18.50X18.00X9.50cm/7.27X7.07X3.73in -Note: Suitable for 58-62 cm head circumference -Total head protection: the anticollision insert shell ensures complete protection for the back of the skull -Soft and comfortable: constructed from reliable plastic materials, the liner is soft and does not cause head burden -Shock absorbing design: the liner effectively absorbs impacts, lowering the risk of head injuries -Removable and washable: the detachable design makes it easy to clean and replace, ensuring easy use -Ideal for sports: suitable for activities like cycling, skateboarding, and climbing, offering full head protection Package list: 1 x anti-collision cap lining