The Head FORMULA 120 sport downhill boots perfectly combine ski handling and comfort. They have four aluminum buckles with micro adjustments, 130/120 flex adjustment in the cuff and the ability to re-adjust the ridges. The inner liners contain Primaloft for extra thermal insulation and feature LiquidFit technology which makes them easy to individually fill the ankle area with paraffin, thus firming up the "blind" spots in this area for perfect handling. The boots can also be used without this additional treatment.