Designed for elite and aggressive skiers, the K2 Cortex 140 Zonal BOA delivers the ultimate in fit customization and on-snow performance. Dual-zone BOA® Fit System dials let you independently fine-tune the shell and cuff for a locked-in, even wrap, eliminating pressure points and maximizing responsiveness. The EliteFit Pro liner, constructed with high-density, thermoformable foam, offers a secure and customizable fit, while the lightweight TPU shell and cuff are fully heat-moldable for pro-level comfort and control.