The Insano is quite literally how the name describes it. Fitted with our Intuition (TM) Center Tongue Dream Liner and BOA (R) Zonal Fit System, which provides a two-zone precise fit system for ultimate heel hold and stability. Flex Slime Tongue (TM) provides rebound and damping. The Michelin (R) Hybrid 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. Ride Insano Snowboard Boots Mens | Black | 11.5 | Christy Sports