Key Features:

• 1:1 Lasting - Means a specific liner, shell and footbed is created for each full and half size.
• Moldable Liners - Made from advanced memory foam, moldable liners adapt to your foot shape over time or can be treated in-store for an instant personalized fit. 
• Asym 3F Design - A unique asymmetric boot design co-developed with BOA® that generates optimal support and flex while reducing foot fatigue and cramps.
• Exo Spine - An external backstay that supports the whole boot and transfers energy instantly from heel to toe. 
• Armor Tech - This bombproof TPU strip wraps around the front of the boot to shield if from abrasions and prevents the boot from packing out too much, prolonging its life  
• 3D PermaFlex - TPU Injected tongue that provides enhanced support and maintains a consistent flex pattern.
• 3D Liner Support - 3D molded material and J-bars around the ankle means minimal movement and maximum control.
• 3D Molded Toebox - Eliminates extra layers and seams around the forefoot, improving water resistance and durability
• OC Kush - Shock absorbing gel pads are inserted into the outsole and heel area providing extra cushioning and dampening.
• Space Blanket - A thermal insulation barrier between the outsole and the bottom of the liner, trapping warmth and keeping cold out.
• Flex - 8/10

In-depth Tech Specs:

• Doule BOA® H4Coiler™ + Dual BOA® Wrap Strap - A groundbreaking new closure system providing incredible all-over support and even pressure distribution. The upper laces and built-in power strap are controlled via a BOA® H4 dial. The forefoot is tightened using a separate dial.
• Gold Liner + Velcro Liner Closure - Premium materials improve flex and delivers all-over support while a Custom Flex Zone adds wiggle room at the toes.
• OrthoLite®X40 Insole - Constructed from two densities of material, including recycled EVA at the heel, the X40 cradles the whole foot to ensure premium support.  
• Vibram® Approach Outsole - An EVA midsole under the whole foot for supreme comfort and an OC-Kush insert for extra dampening beneath the heel. The Vibram® ICE-TREK tread is made from a rubber compound especially developed for cold and snowy surfaces providing unrivaled grip.