【Bike Helmet Size】:GTSBROS helmet is designed for adults; suggested age range: 14 years old and up; suggested head circumference:22 .2 to 23.4 inches.To determine the correct helmet size,please refer to the size information.Our road bike helmets for men and women has a convenient size adjustable dial,turn the dial on the back of the helmet to adapt the built-in helmet framework for a perfect fit

【Front and Rear Led Light】: Our Bicycle helmets included plug-in front and back LED light provide the better possible protection and visibility for night riding.The rear lights have 4 modes: constant, flash, slow flash, warning flash.You don’t need to remove the helmet to change the light.

【High-quality Helmet】: Apply high quality PC shell material and high-density EPS foam for better shock absorption upon initial impact, manages the energy from impacts effectively and offering tremendous protection

【Comfortable 】: Soft, comfortable, detachable and washable helmet pads. It is specialized designs for the urban commuting, bikes cycling and suitable for city, road, electric, trek bike and etc

【Customer First】：We always pursue to provide high quality products and warm service for all valued customers. If any problems or suggestions, please contact us and we are here to serve you with our faith