The base of the helmet starts with our cut-away shape, lined with our patented inflatable liner, this core protects around the head whilst allowing for the addition of ear defenders for loud environments. To add more protection around the ears quickly adjust the helmet by clicking on the side pieces of the helmet and switch out the liner for the correct shape and you have more surrounding protection. Lastly for full face coverage, which is advised on jet skis and high-speed watercraft, click on the frontal face piece which provides 360-degree coverage.