The fit. Ice BOA® is packed with technical and functional features, making it the premier model in our line of ice skates. While all of our skates feature the legendary comfort of K2's Original K2 SoftBoot® design, the F.I.T. Ice BOA® has the added benefit of BOA® Fit System technology for quick, effortless precision fit and fit on the fly. The boot is also equipped with Thinsulate® insulation and water repellent materials to keep your feet warm and dry during those long skate sessions. The Stability Plus cuff complements the SoftBoot® design providing confidence-inspiring support and stability, while the injection-locked blade is easy to sharpen to keep you performing on the ice!