∡High-Quality Material: To reduce and protect the rider's head during , we design the Bike Helmets with lightweight, durable PVC and PC EPS foam, which are safe. The high-density polycarbonate shell and EPS foam with superior technology will save your life during an emergency. ∡Convenient Design: The Bike Helmets are to provide shade even in hot weather, which makes them fit for road and mountain bikes. It is a nice choice for you to use them. ∡Breathable Material: we make the Bike Helmets Lightweight and have many vents to let air inside Helmets circulate while riding. You will not nervous with our ultralight Helmets. You may feel comfortable with the internal padding of breathable material. You can remove the sponge lining to clean easily. ∡Suitable for Men and Women: Our Road Bike Helmets are 57 - 62 cm / 22.44 - 24.41 inches, a standard size, and it is equipped with a user-friendly control wheel system. We design the side straps to adjust the head sizes to make them more suitable for men and women. ∡Safe Design: Bike Helmets can provide you with unmatched cooling and make you safe. They are suitable for summer and long journeys in the mountains.