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The Index is our flagship freeride boot, built for limitless backcountry adventures. It features the very latest Nidecker technology and dials up the stiffness for pure big mountain performance, whether you’re hiking lines off the lift or splitboarding into untouched terrain. We’ve constructed it around an asymmetrical upper that conforms perfectly to your foot and calf, with flex zones for unrivalled control without sacrificing comfort. A water resistant Storm Cover provides extra shelter for your feet and keeps your laces from icing up in deep snow. The lace system itself is BOA’s top-of-the-line H4 Coiler, with a brand new Internal Heel Lock system operated via the side dial and a separate control on the tongue to tighten the shell.
Expect unreal comfort and foot hold. To maximise grip in frozen terrain, we’ve added a premium B.F.T Vibram Approach outsole featuring an Icetrek rubber compound, while dual EVA layers in the midsole reduce vibrations on bumpy terrain and help soften big landings. The outsole blends into the Exo Spine via our seamless Transition Zone design, eliminating the chance of snagging the back of your boot on the binding and boosting heelside response. The solid feel continues up front with a tough TPU shield we call ArmourTech, which protects your toes while you’re kicking steps up that ridgeline. Inside, a Gold Level Wrap Liner provides unparalleled comfort and support, and can be heat moulded for a custom fit. Make no mistake, this thing is the absolute pinnacle of boot technology. From Japanese tree lines to that dream Alaska trip, the Index is expedition-ready.
Ready for anything, designed to withstand. From park to podium, H4 resists impacts from the most demanding riders. The Coiler automatically takes up lace slack, increasing speed of entry into the boot and providing a micro-adjustable precision fit
The BOA® Dial, located on the tongue, pulls together the upper and lower part of the boot. Then the BOA® dial on the side activates a double lace that runs through an internal harness connected to the shell and tongue. When tightened, it creates a locking sensation and provides 3D heel lockdown. On both sides, lateral locking is done via the ankle strap and frontal locking is done via the laces that run through the tongue and tighten the tongue towards the instep.
An advanced anatomical shape in comfortable EVA with high-density EVA supporting the deep heel cup and arch, and special high-rebound EVA cushioning the heel. A silicone top-print adds traction to the fleece-lined footbed.
Wrap-style asym shape for no pressure points, better flex control and easy on/off. The Custom Flex Zone gives your toes wiggle room for warmth. Uses extra PU for lateral stiffness and efficient power transfer between liner and shell.
Our top-of-the-range outsole comes with a full EVA midsole for the best possible comfort under the whole foot. An OC-Kush insert gives excellent dampening under the heel. The highlight is the new Vibram ICE-TREK compound, which is the best rubber available for cold, icey or snowy surfaces. Extra grip at toe and heel was inspired by fish scales.
