Brand:wildside Name:racing cycling helmet with gogglesroadhelmet Triathlon tt helmet Details: 1.Material: Shell PC, internal EPS 2.Weightabout 355g 3.Size: head circumference 55-61cm. 4.Color options: all black, black-silver-red 5.Certification: CE Features: 1.Integrally-molded helmet, higher hardness than ordinary helmet, 2.4 airflow vents. 3.Ultralight about 255g, thanks to the new high quality material, this helmet is lighter but with high hardness 4.Functional goggle, high hardness and anti dazzling light. Note: 1) Please compare the detail sizes with your helmet before placing order ,and please allow a few centimeters differ due to manual measurement error.