BOA® FIT SYSTEM
The BOA® Fit System delivers dialed in performance and a micro-adjustable precision fit. It consists of three integral parts: a micro-adjustable dial, lightweight yet extremely strong laces and low-friction lace guides, which are applied in uniquely designed configurations to improve the fit and performance of the boot.

H+I1 DIAL
Provides micro-adjustable, precision fit and quick release, with quality and durability guaranteed. The BOA dial platform features a breakaway design engineered to eject the dial cartridge upon severe impact without damaging the system, allowing skiers to pop the dial back into the bayonet midmountain. In the unlikely event that the system is broken, it can be easily repaired and replaced.

BOA® FIT SYSTEM: DIALED IN
Precision fit with on-the-fly tightening and loosening for enhanced responsiveness, optimized pressure distribution, and reduced pressure points.

BOA® FIT SYSTEM: LOCKED IN
Connected fit designed to uniformly wrap the foot and minimize downward pressure, increasing heel lock-down for improved power and edge-to-edge control.

BOA® FIT SYSTEM: CONFIDENT
Engineered for confidence and built to withstand rugged terrain and inclement weather, BOA® dials and laces deliver extreme durability. Bayonet and cartridge system ensures continued operation, even after heavy impacts.

MULTIFIT™ LAST
The MultiFit Last was developed in conjunction with the BOA® Fit System to accommodate a variety of foot shapes ranging from 97mm to 104mm, eliminating the need for multiple last options. * Mindbender, Anthem, & Recon BOA® models range 97mm - 100mm ** BFC BOA® models range 100mm - 103mm (104mm with heat molding)

POWERLOCK SPYNE
A performance-oriented walk mode designed for ski touring that offers a 50-degree range of motion. When in ski mode, Powerlock Spyne provides a powerful and secure connection for uncompromised downhill performance.

INTEGRATED TECH FITTINGS
Tech fittings in the toe and heel are fully integrated into the shell injection, allowing for compatibility with both tech bindings and alpine DIN bindings.

FASTFIT INSTEP
Softer TPU material is used in the instep area of select models' shells for quick and easy entry and exit.

FULLY HEAT-MOLDABLE
Both the boot's shell and cuff are capable of being heat-molded to a variety of foot shapes for a true custom fit.

FRICTION FREE CUFF PIVOT
An easy-hinging cuff pivot designed to provide minimal resistance while in walk mode.

POWERLITE SHELL
K2's highest-performance shell design, utilizing shell walls of varying thicknesses and four different types of TPU to provide the ultimate combination of light weight and responsiveness.

GRIPWALK OUTSOLES
Removable and interchangeable ISO 23223 alpine rockered soles collaboratively designed to work with Marker’s Grip Walk binding system for better grip and added comfort when walking and standing in boots, but doesn’t compromise the power transmission and release function between the boot and binding when skiing. Preinstalled.

MODULAR HONEYCOMB BOOT BOARD WITH HARD & SOFT INSERTS
Stay Warmer, Longer. Traps heat and insulates like a down jacket. Retains heat 15% better than traditional boot board. Boot-fitter friendly.

PEBAX CUFF
Lightweight, eco-friendly material used in the cuff of select boot models for energetic and consistent flex across a wide range of temperatures.

POWERFIT PRO TOUR LINER
Pre-molded and lasted with Ultralon heat-moldable foam. Featuring stiffer foam and a stiff, asymmetric tongue for added power and energy transmission, pre-molded ankle pockets, and a high-density power collar. Includes a tour notch at the back of the ankle for increased comfort and range of motion while hiking and skinning.

ELASTIC CAM STRAP - ONE PIECE
Increases performance and responsiveness by cinching tighter than a traditional power strap resulting in exceptional power transmission and precise handling.