This Men's Prime Snowboard Boot has a stiff flex and loads of features to give you a super-dialed custom fit. ThirtyTwo's Level4P Liner not only molds to fit your foot but also has a removable power strap and support overlays that improve energy transfer from your foot to the board. The shell's Power Wrap System hugs your mid-foot from sole to instep. ThirtyTwo's 3D molded tongue works with the shell's articulating cuff and tongue tensioner to let you easily tighten up the laces on these babies and get a secure, comfortable fit. An STI Evolution Foam midsole and gel cushioning in the heel help absorb shock from hard landings and board chatter. An inner ankle harness holds your heel in place for improved response. These boots are equipped with the RECCO Rescue System—if you get caught in an inbounds avalanche, ski patrol might have an easier time finding you.