The Scarpa Maestrale XT Ski Boots are designed for backcountry skiing and touring. They are compatible with AT Tech Bindings and feature a Tech Sole. The boots are available in Mondopoint size 31.5 and us size 13.5. The black and blue color scheme is stylish and modern. The Maestrale XT model is a great choice for skiers who want a high-performance ski boot that can handle a variety of terrain. These are new, open box. I bought them hoping they would fit but they don’t. See pics for details. the boot sole length: 348mm