About this item

• 【 Helmet size 】: This bike helmet is designed specifically for adults/teenagers; Suggested head circumference: 52.5-55.5 centimeters (20.7-21.9 inches) Please refer to the size information before purchasing | 【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 | 【 Adjustable size function】: Our men/women bicycle helmets feature a dual fit and adjustable design, with an adjustable dial on the back of the helmet to help adapt to different head circumference. Rotate the dial to fit the built-in helmet frame for a perfect fit | [Safety Protection] GTSBROS bike helmet has passed CE and CPSC certification. The integrated structure combines high-density EPS foam and PC shell to ensure better shock absorption and provide more safety protection. This bicycle helmet has a protective effect on adults and is very suitable for urban commuting, cycling, and skateboarding | 【 Ventilation】 This adult bicycle helmet has 14 air vents and internal air channels to keep you cool and comfortable, making it suitable for casual or long-term cycling. The linner pad can be cleaned and provides ideal cushioning for cycling