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Index APX

Dual BOA®, Pro-Stiff, Responsive

Regular price $599.95
Regular price Sale price $ 599.95 -Liquid error (snippets/price line 159): Computation results in '-Infinity'%

total reviews

Color Black
Size

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SKU: N.27.BTM.IPX.001.070.1

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Key Features

Beyond Boundaries

Inspired by high-altitude mountaineering, the Index APX is built for riders who define the edge of what's possible. Its full-length Storm Cover wraps the entire boot in water-resistant armor – a radical design concept that protects your feet when conditions turn savage. Dual H5 BOA® dials offer micro-adjustable foot-hold, while pro-level Vibram® grip opens up the steepest and deepest of objectives. Push further.
  • The Index APX's Storm Cover wraps the entire boot in super-strong water-resistant mesh with TPU layering. Experience high-alpine protection that keeps your feet sheltered in the deepest, most exposed terrain.
  • The premium Vibram® outsole features ICE-TREK forefoot grip and new Traction Lugs for technical approaches. Its updated Transition Zone and stiffer Durastep heel compound ensure seamless compatibility with Supermatic®.
  • Advanced heat-molding tech delivers a precise fit in minutes. Premium liner materials enhance flex and support, while the top-tier 3D Summit footbed combines dual-density foam with TPU heel support.

Terrain

Resort

4/5
Resort rating: 4 out of 5

Pow

5/5
Pow rating: 5 out of 5

Park

1/5
Park rating: 1 out of 5

Flex

5/5

Maximum power and precision. The stiffest, most responsive boots in our line are made for expert riders who send the biggest hits and steepest lines.

Pro-Stiff

Flex rating: 5 out of 5

Tech Details

  • CLOSURE SYSTEM

    Dual BOA®

    Dual BOA® technology provides quick, precise lace adjustments via two independent dials. Each controls a distinct boot zone, delivering a custom fit in seconds.

  • BOA® Fit System

    H5 Coiler

    The next evolution in BOA® technology features micro-adjustability – simply turn the dial in reverse to gradually release tension and fine-tune your fit. Lower profile design gives the boot a clean look and reduces snag risk.

  • HEEL LOCK

    Internal Heel Lock

    The BOA® side-dial controls an internal harness connected to the shell and tongue, delivering incredible three-dimensional foot hold with minimal heel lift.

  • Outsole

    Vibram Approach 2.0

    The latest version of our premium outsole features an updated Transition Zone™ and a stiffer Durastep heel compound for even better compatibility with speed entry bindings. A Vibram® ICE-TREK forefoot includes new Traction Lugs to deliver insane grip.

  • LINER

    Gold

    The Gold liner's advanced heat-molding technology delivers a precise fit in minutes. Premium materials enhance flex and support, while a Custom Flex Zone adds toe room. Available as a classic tongue or asym wrap depending on the boot model.

  • LINER CLOSURE

    Touch Fastener

    Rapid, intuitive closure found on our youth models.

  • Insole

    3D Summit

    Our top-tier 3D footbed combines EVA and TPE foam with an injected TPU heel support in a two-piece design. This high-end construction enhances arch stability while a breathable mesh top layer adds warmth and grip.

  • FEATURES

    BOA®

    The industry standard in speed lacing systems. Micro-adjustable for a precise fit and engineered to perform in the toughest conditions.

  • FEATURES

    Vibram

    Based in Italy and with over 80 years of experience, Vibram is the world leader in high-performance rubber soles.

Extras

  • Moldable Liner

    Made from advanced memory foam, our moldable liners adapt to your foot shape over time or can be heated in store for an instant, personalized fit. Experience zero pressure points and maximum comfort.

  • Asym 3F

    A unique asymmetrical design co-developed with BOA® for balanced support and flex. The tongue's lace guides are positioned over flatter forefoot areas for even closure and reduced pressure points. Enhanced medial arch support fights foot fatigue.

  • Exo Spine

    An external backstay that supports the whole boot and transfers energy instantly from heel to toe. It connects seamlessly to the outsole via our Transition Zone™, so you won't hook up on the binding's heelcup when you enter or exit your binding.

  • Armor-Tech

    This bombproof TPU strip wraps around the front of the boot to shield it from abrasion and protect your toes when you're kicking in steps. It also helps prevent the boot from packing out too much, prolonging its life.

  • 3D Molded Toebox

    Our 3D Toebox minimizes extra layers and seams around the forefoot, improving water resistance and durability. The streamlined design also makes it easier to slide your boot in and out of the binding.

  • 3D Molded Tongue

    Our asymmetric 3D Molded Tongue features a sharper curve on the medial side to match your natural forefoot shape. This design minimizes pressure points and delivers more balanced comfort and support than a traditional straight tongue.

  • Space Blanket

    A thermal insulation barrier between the outsole and the bottom of the liner keeps the warmth inside and the cold outside.

  • Storm Cover

    A water-resistant PU/mesh cover with zipper. The Storm Cover helps keep feet dry for long days in deep snow conditions and features a 3D engineered knit that closely hugs the boot. Stretchable material at the top eases closure.