This amazing half helmet ticks off all of the right boxes. The 707 is built with a precision-crafted Carbon Fibre or Fiberglass shell, and a functional drop-down replaceable inner sun lens which drops low on the face for full vision protection. The 707 uses a near memory foam removable moisture-wicking liner to offer a deep comfortable fit; and after about 10 hrs of riding, the liner should break down to conform to the rider's head shape and offer an optimal fitting helmet.