The Intuition Tour Tongue Liners are designed to have a high range of motion for backcountry touring and telemarking, and provide top tier comfort and warmth when you need it most. The Intuition Tour Tongue Liners are constructed from softer Dual Density (DD) heat moldable Intuition Foam and are lightweight. The addition of a rear flex panel increases range of motion to save energy on the way up, and a stiff upper cuff provides unparalleled responsiveness on the way down.