X Liner is Gentex’s most advanced high-tech helmet fitting system. It is comfortable, cool, clean, and easy to install.
Inside the revolutionary X Liner are two layers of visco-elastic comfort foam that instantly and continuously adjust to your head. The soft inner layer adjusts quickly as you fly it fits perfectly, eliminates, hot spots, and stabilizes your helmet. The firmer outer layer adjusts more slowly and its firmness helps keep your helmet from bottoming out.
You can enjoy the self-adjusting comfort of X-Liner even in hot or cold weather because the visco elastic foam used in the X-Liner is not sensitive to temperature. Other visco elastic foams become too hard in cold weather and are too soft in hot weather.
X Liner’s unique design promotes air circulation and increases evaporation so you stay cool. Your helmet will also be more stable as X Liner’s shape eliminates roll and creep.