The Prime is unquestionably one of the most dominating snowboard boots ever. Featuring new technology in lacing, fit, flex, comfort, cushioning and the most customizable power-wrap system to-date. The evolution of snowboard boot technology has come full-force.Power Wrap System forefoot cage for ultimate lacing. Tongue Tension System for leverage, easy lacing and improved heel hold. Articulating Cuff for improved fit, heel hold and smooth flex. 3-D Molded Tongue wraps your foot for easy lacing and improved fit. Fit System Heel Hold Kit for next level custom fit. Inner Ankle Harness for secure inner lacing. STI Evolution Foam™ midsole with System G2™ cushioning.