K2 2017 Spyne 120 Men's Ski Boots

  • Sale
  • $499.00
  • Regular price $999.00
  • Will be in stock after


A new, all-mountain expert level boot, the K2 Spyne 120 Ski Boots are a performance powerhouse, incorporating an incredible arsenal of technology and a new versatile flex in K2 s proven Spyne design. The use of the Powerfuse Spyne provides a rock solid connection without using rivets and tremendous performance in conditions ranging from powder to corduroy. The versatile 100mm last works great for average width feet and combines with a LuxFitPro Liner that features heat moldable foam at key contact points with traditional foam in the cuff for control.

Product Details


Last: 100 mm – Perfect for most average width, average instep height feet.

Custom Thermo Shell – The shell can be heat molded, punched, ground and customized with your favorite boot fitter for optimized comfort and performance. The shell can be widened up to 6 mm with this process.

Asymmetrical Toe Box – K2 matches the toe box to the natural curvature of your toes for a more precise and comfortable fit.

Navicular Punch – A bump is pre-formed in the navicular area of the medial ankle where many skiers experience pressure.


Flex: 120 – Stiff flex suitable for advanced to expert level skiers.


LuxFitPRO Liner – This heat-moldable liner combines the performance and fit of a traditional PVC liner with the benefits of strategically placed Ultralon EVA foam. Lasted for precise "out-of-the-box" fit the LuxFit Tour also includes heat-moldable Asymmetric Tongues to reduce shin bang and ensure smooth, precise flex initiation. The Power Wedge and Power Collar offer varied forward lean and the upper cuff support needed for taking advantage of challenging conditions.

Moldable Asymmetric Tongue

Power Wedge

Power Collar

Shell Materials & Design

PowerFuse SpYne – A rear co-injected “Y” shaped design that adds strength and power to the Energy Interlock, the PowerFuse SpYne maximizes fore/aft flex efficiency and lateral stiffness for sustained performance and responsiveness in all terrain. Because of the SpYne, K2 is able to optimize materials in the cuff and shell, eliminating excessive vibrations in rough terrain.

Energy Interlock – A rivet-free technology that integrates the cuff and shell of the boot. The Interlock stretches when the boot is flexed forward, and the energy is released throughout the turn, creating a smoother, more natural flex than riveted designs.


Dual Cuff Alignment – Dual sided cuff alignment for +/- 2 degree of cuff adjustment.

Forward Lean – 14° / 12° with Power Wedge


4 Aluminum Micro-Adjustable Buckles

Power Strap

40 mm PowerCinch Strap


Replaceable Outsoles with Padded Mid-Grip

GripWalk® Outsoles Available Separately – New removable and interchangeable ISO 9523 alpine rockered soles for selected K2 boots collaberatively 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.


  • Ability Level:Advanced-Expert

  • Ski Boot Flex:Stiff

  • Forefoot Width:100 mm
  • Flex Index:120
  • Boot Sole Type:Alpine DIN (ISO 5355)
  • Includes Tech Fittings:No
  • Number of Buckles:4
  • Warranty:1 Year