Schwinn Thrasher Bike Helmet for Adult Men Women Age 14+ with Suggested Fit 58-62cm, Multi-Mode Rear LED Light or No Light Option, Lightweight with Adjustable Side and Chin Strap, Bike AccessoriesThe Schwinn Thrasher lightweight helmet is designed for adults; suggested age range: 14 years old and up; suggested head circumference: 22. 88 to 24. 5 inches Full Schwinn 360 Comfort featuring an adjustable dial fit knob and full range padding for the perfect custom fit. Two microshell layers and full coverage EPS foam construction provides lightweight durability Easy adjust dial system provides a custom fit with a twist of the dial, Adjustable side