A custom boot liner straight out of the box, no heat required! Hundreds of hours of testing have helped develop the Intuition Dreamliner, and after trying it on you'll see where the name came from. With a superior foot hold and improved fit, you'll see a direct correlation with higher comfort and better performance. New lining material keeps feet snug and alleviates slipping and blisters. Available in three different thicknesses to best suit your needs and styles.