Designed to do it all, we trust the K2 Mindbender 120 Ski Boot on tours and at the resort. At the heart of this versatility is the 120-flex Powerlite shell with a Powerlock Spyne. This shell drives power to our edges while saving weight, so that the Spyne can add torsional rigidity and 50° range of motion for comfortable strides. Meanwhile the Multifit last effortlessly accommodates 97-100mm lasts right out of the box.