The Intuition Downhill Tongue Liners are available in stiffer High Density (HD) heat moldable Intuition Foam, as well as softer Dual Density (DD) Intuition Foam so you can dial in your perfect fit and get the maximum power out of your boots. 

The Intuition Downhill Liners are mainly used for alpine and on piste skiing, free ride and freestyle.

The Intuition Downhill Tongue Dual Density Liners are the top recommendation as replacement for stock liners in ski and snowboard boots.

The Intuition Downhill Tongue Liners are available in 3 Dual Density Intuition Foam densities: 9mm (Low Volume, thinnest), 12 mm (Medium Volume),  and 15mm (High Volume, thickest) to accommodate a range of shell fits.