K2 Mindbender 110 Alliance! A ski boot for those who are looking for the perfect mix of freeride & touring. Based on K2 's successful Anthem series but with Tech inserts, an advanced walk mode and a liner designed for better walking performance. Only 1,450 grams in size 24.5. The ski boot has a 98mm wide last which can be considered rather narrow but it is an incredibly comfortable last. The liner is made of Ultralon which is very malleable and insulating. The shaft is made of Pebax, which is very lightweight, and the bottom part is of TPU which is malleable and durable. The K2 Mindbender series is for those who do not want to compromise and who want the most versatile ski boot on the market right now. The sizes are specifically designed for a female foot and anatomy. Sizes from 22.5-27.5. K2 has been collaborating with the Breast Cancer Foundation for a long time and part of the sale proceeds go to breast cancer research. You can see this on all K2 women's products as they have the Pink ribbon symbol on the ski, snowboard or ski boot.