SCARPA Mobe Freeride Alpine Touring Ski Boot New PowerBlock Tour is the most powerful ski/walk mechanism available offering fixed-cuff power and rigidity Active Power Strap provides dynamic support, increased responsiveness while eliminating shin-bang Fitting indicator system makes getting in/out of TLT binding systems easier than ever before Custom-adjustable forward lean settings between 15 and 22 degrees V-Frame power-ribs on the cuff add strength without weight