vision. Multicolor:Different colors and styles for you to choose from, highlighting your personality, eye-catching, fashionable and novel, should be the first choice that come to your mind. Premium Quality Materials: Brand new with good performance. Made from premium-quality ABS materials, reliable performance and superior longevity. Highly breathable fibres offers a comfortable way to have breathable air between the head and helmet, can be easy to remove and wash. Cellular design makes the inner multilayered security protection reduce the feeling of being overwhelmed, comfortable and skin-friendly.   Dual Visor: The outside visor and inner sun visor can be respectively flipped up and down, which can offer you dual protection. The outside visor can be opened and closed  90° by pressing the side button and flipping up simultaneously.  Highly Breathable: The ventilation switch can be adjusted freely and the omni-directional ventilation design ensure a breezier riding.  Easy Operation: Quick and easy buckles, you can wear the helmet by buckling up within 3s.  User-friendly Design: The helmet is with bluetooth space on the both side, which is convenient for you to wear your BT headset during riding. Safe Riding: The motorcycle helmet is of ergonomic design, which can offer better protection to the rider. Specifications: Material: ABS'Fibre Color: Multicolor(Style 1, Style 2,Style 3)(optional)    Head Circumference:  Size M:57-58cm/22.4-22.8in  Size L:59-60cm/23.2-23.6in Size XL:61-62cm/24-24.4in Size 2XL:63-64cm/24.8-25in(optional) Weight:  Size M:1970g Size L:1990g Size XL:2010g Size 2XL:2030g (optional) Package Size: 37 * 27 * 26cm Package List: 1 * Motorcycle Helmet