evo.com | Salomon Alpine Touring Ski Boots > The Salomon Shift Alpha BOA 115 W Alpine Touring Ski Boots tread the fine line between "Powerful Freeride" and "Efficient Touring" with ease and grace, giving the big mountain afficionado the choice of any line on the mountain. With a Polyurethane lower shell, BOA(R) Closure System, and low-profile Twin Lock walk mode mechanism - as well as one of the best narrow-lasted fits on the market - the Shift Alpha BOA 115 checks all the boxes and then some. Last: 98 mm Narrow forefoot with relaxed ankle and heel volume. Can be heat molded using the custom heat molding process to approximately 104mm in the forefoot. CF Freeride 4d Race Liner Walk function, lace loops, fully heat moldable Flex: 115 Very stiff flex designed for aggressive and expert skiers. Cuff Polyolefin and Cross-linked Polyurethane 2 Screwed Aluminum Cuff Buckles With hiking hooks | Women's Salomon Shift Alpha BOA 115 W Alpine Touring Ski Boots 2027 - 23.5 in Green