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TLT 5 Mountain TF-X Alpine Touring Boot

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So agile and powerful it might just walk on snow AND water.

Attack high-altitude tours with the lightness and agility of the Dynafit TLT 5 Mountain TF-X Alpine Touring Boot. Mountain-bred details like a rockered sole for hiking and crampon compatibility make this a prime choice for fast ski mountaineering. This boot rocks a thermoformable liner for unparalleled comfort on the descent and a Pebax cuff that maintains a reliable flex in the deep freeze of winter or warm spring shredding. Transition from ski to walk and tackle your next technical ascent with sure-footed speed.


  • The TF-X liner comfortably supports the foot and uses a forefoot flex zone to integrate with the TLT5's 5mm of ACTI-Flex last flexibility for less foot fatigue during marathon skin sessions
  • Claw Outsole uses a durable, rubberized tread that provides ample traction in mixed terrain and plays nicely with crampons
  • Downhill Booster system uses one fixed and one removable tongue that swaps out for uphill hikes, and slides in easily for powerful downhill performance
  • At the catches, the Magnesium Ultra-Lock System locks over the cuff cable so the cuff buckle can be both opened fully and simultaneously secured for easier switching from ski to walk mode
  • Close the Ultra-Lock cuff buckle and an insert on the buckle slides into hole in the rear cuff, locking the two together to create a singular, stiff structure
  • Item #DNF0048
Shell Material
[shell] Grilamid, [cuff] Pebax
Lean Angle
15 - 18 deg
Thermo-moldable Liner
Liner Closure
Walk Mode
yes, 60-degree rotation
Binding Compatibility
Dynafit Quick Step-In
Claimed Weight
[single, size 27.5] 2 lb 11.2 oz
Recommended Use
alpine touring, ski mountaineering
Manufacturer Warranty
2 years