Thank you for viewing! (^-^) This product is brand new and unused, so we have not checked its functionality. ♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎♠︎ 【Helmet Specifications】 You can adjust the head size to meet the needs of most cyclists, according to the head circumference size. It can be used not only by adults but also by elementary school students and older. It is an essential item for safely enjoying various sports. 【Good Ventilation and Ventilation Function】 The lightweight arc-shaped shell enhances durability and can be used without hesitation. Adjustable sidebands allow you to fine-tune the fit and comfort. The top vents provide important ventilation for cycling in the hot summer. 【Protect Your Head】 The bike helmet enhances head protection, protection, and shock absorption, increasing safety and reducing the possibility of head trauma during riding. 【Multi-purpose】 The cycling helmet is suitable for cycling, skiing, baseball, skateboarding, and other sports. It is perfect for men and women on the go. $$2480