The Insano is quite literally how the name describes it. Fitted with our Intuition™ Center Tongue Dream Liner and H4 BOA® Focus Fit System, which provides a two-zone precise fit system for ultimate heel hold and stability. Fiber Reinforced Flex Slime Tongue™ provides rebound and damping. The new Michelin® Traverse Outsole emphasizes grip and response underfoot, and coupled with the fact that the Insano is the stiffest boot in our line, this thing is built for all-mountain response all the time.