It is a great helmet for the outdoor cycling, which is not only comfortable and fashion look, but also can protect your head and ensure your safety. 1 Weight: 260 g, Lightweight, in mould construction. 2 Material: PC outer shell with impact-absorbing inner EPS. 3 360 degree ventilation through 24 vents to help keep your head cool. 4 Adjust the size of devices to ensure a proper and comfortable fit. 5 Removable, washable padding. 6 Insect mosquito control design, prevent flying insects into the helmet during the ride.