Security, Safety and Surveillance Products Design X Skier Indicated Direction Helmet by Tianyang Yuan X Skier is a ski helmet designed to improve safety on the slopes. Skiers behind cannot see which way the skier in front will turn, and sudden changes of direction can cause collisions. X Skier addresses this risk with a motion sensing direction indicator on the back of the helmet, which shows the turn by changing brightness, position and color. An abnormal speed or direction triggers a warning signal. A Bluetooth device in the side ear allows music control, phone calls and emergency calls through a metal button.