Specifications: Unquestionably, our product can protect your head effectively because it adopts the PC to cover between the inner layer and the outer shell. And it can prevent crack by the one-piece design. And it also can resist impact effectively to ensure your safety during riding.Come with a total of 14 ventilation holes design, can effectively reduce wind resistance, increase air convection. The comfort lining can be removed and washed, and the head circumference can be adjusted at will, so it fits well and is pleasant to wear.It is made from EPS and PC, is wearable to use.The length of the product is 32 cm, the width is 22 cm and the thickness is 16 cm.Suitable for road, mountain, bicycle, etc.Size Details: Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.Package Includes: 1 x Helmet