Description: Quality Material: This Full Face Bike Helmet is made from quality PC shell and EPS lining, ensuring long term durability and use.Comfortable Wear: The Bicycle Helmet features a bright color scheme, soft interior, and breathable design for comfortable wear and easy usage.Thoughtful Design: The Cycling Helmet comes with a removable lining for easy cleaning. Its full face helmet design provides you with an enhanced cycling experience.Wide Application: This Bike Helmet is nice for outdoor cycling, mountain biking, outdoor riding sports, and other similar activities.Great Gift: This Mountain Bike Helmet makes a great and practical gift for men, women, family members, or friends who enjoy cycling or outdoor riding activities. Specification: Material:PC Shell and EPS Inner Size Chart: Head Circumference: 55cm-58cm/21.65inch-22.83inch, for TeenagerHelmet Size: 36cmx27cmx23.5cm/14.17inchx10.63inchx9.25inch Package Includes: 1 Bike Helmet Note: Please allow slightly errors 1-2cm differences due to manual measurement.