Nidecker Altai Snowboard Boots 2025 - Black

Flex Rating – 7 (1 Soft - 10 Stiff)

Articulating Flex Zone – The upper boot cuff is asymmetrically connected to the lower boot allowing the ankle to flex naturally while providing support without shell distortion.A thermal insulation barrier between the outsole and the bottom of the liner keeps the warmth inside and the cold outside.

3D Molded Tongue – The asymmetrical tongue is 3D molded and curved towards the medial side, following the naturally raised ridgeline of your forefoot to alleviate pressure points and give a more balanced feel of comfort and support. An anatomically correct and asymmetrical tongue performs better than a standard straight one.

3D Molded Toe Box – These toebox designs eliminate extra layers and seams around the toe of the boot to create a durable and streamlined design with less bulk and a better FlowFit on your foot, and a better FlowFit in your bindings.

Silver Heat Moldable Liner – The redesigned Silver-Level Thermo Heat Moldable liner will conform to the shape of your foot perfectly. Premolded on a FlowFit last, this liner will remain snug where it matters most, with an internal Heel Harness that will give you optimum support. This liner offers maximum comfort and performance, featuring high-density thermo N-FOAM, Nidecker's reverse-cut asymmetrical comfort-cuff and internal multi-layer latex J-bar construction. The removable harness offers easy control of tightness and support, and the Helios model adds an exclusive Velcro top power strap closure and external EVA reinforcement panels for targeted support.

Inner Shell harness w/ Liner Velcro

H4 Coiler™ Technology

Mid Power Dual Zone Boa® Configuration – The Boa® Mid Power Dual Zone used on Helios and HeliosW features the Boa® CoilerTM Technology* over the tongue and the mid power dial on the side provides strength and power by using a larger vdial to draw tension on one lace, this configuration is providing exclusive upper and lower zonal adjustment, offering a snug fit and perfect support exactly where you want it. This Boa® Mid Power configuration features the SS2 lace*** that deliver the best precision, responsiveness, and support ,without seconds for longer and stronger days on the hill. The limited edition Helios Instinct include a black & white TX lace**.

3D-Molded Dual Density – An extra layer of high-density EVA supports the deep heel cup and anatomical arch, while comfort EVA offers more flexibility to the forefoot. Silicone top-print adds traction to the fleece-lined footbed.

B.F.T Gravity 2.0 – This super durable, all-rubber outsole is designed to support the anatomy of your foot, with N-Gel cushioning in selected models. Be it strapped in or just walking around on the snow, you’ll look as good and feel as comfortable as you do in your favorite pair of sneakers.

Rubber Backstay

8° Forward Lean (1:1 Lasting)