Absolute control. Sportmachine 3 100 BOA® allows you to explore the entire mountain in comfort without sacrificing performance. Its integrated BOA®Fit System perfectly pairs with our Tri Force technology, enhancing its performance, precision and comfort. To keep you warm and dry run after run, it features a Precision Fit liner with PrimaLoft insulation. And thanks to a customizable shell and liner, you can truly make this boot your own. Ski your best turns yet with the Sportmachine 3 100 BOA®. Flex: 100mm Last: 102mm Volume: Medium Wide Features: Cuff: PP Shell: Bimat PU Soles: Gripwalk® Extra-Grip Buckles: 2 Micro ALU; BOA® Fit System Liner: Precision Fit Primaloft® Power Strap: 35mm