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Black Diamond
Prime Alpine Touring Boot - Men's

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One boot to rule them all.

Sacrifice nothing when you pull on the Black Diamond Men's Prime Alpine Touring Boot before a marathon ski tour or dawn-patrol powder mission. This lightweight boot offers power, precision, and comfort in an AT package that's just as comfortable and warm as your alpine boot. In walk mode, you're treated to 40 degrees of buttery-smooth cuff flex to keep your stride natural on the skin track, and in ski mode, the cuff locks into place against the boot shell so you lose nothing in the way of performance. Push this boot into technical descents worthy of a freeride boot and tackle ascents that would otherwise demand a too-light, minimalist AT boot—the Prime takes both in stride.


Details

  • Triax pivot frame is a touring-focused frame design that offers alpine-style power transfer and smooth, natural striding motion when you're touring
  • 110-rated flex index provides enough stiffness to precisely control your skis and just enough forgiveness to make long days of touring easier on your foot
  • Efficient Fit AT Light liner is stiff and lightweight, designed specifically for touring
  • V-shaped last has a 103mm toebox to give your toes room to move and allow ample circulation for warmth
  • Truelasted liner fits your foot right out of the box or it can be easily thermomolded for a truly custom fit
  • Liner secures with the Boa closure system that you can tighten or loosen with the spin of a dial
  • Liner also features an antimicrobial treatment to stop funky odors, a smooth interior finish so it's easy to slide your foot inside, and a multi-density Achilles pad insert
  • Three-buckle design keeps your foot secure and ensures power transfer when skiing without hampering the free-flexing design of the boot when you're in tour mode
  • Buckle closeout dents have a hooked shape that locks the QuickWire buckles securely in place once the buckle is flipped down
  • Pivoting cuff design offers resistance-free movement in tour mode so you get a whopping 40-degree range of motion with each step: 20degrees back and 20 degrees forward
  • Pivoting cuff locks into the edge of the instep cuff in ski mode, pressuring against the boot shell for stiffness and power
  • In walk mode, the pivoting cuff naturally slides up and out of the way of your instep buckle to allow the boot to flex further forward
  • Rubber outsole has a rockered shape that dramatically increases traction and allows for the most natural foot roll when you're hiking or bootpacking
  • Tech inserts give you the option to use this boot with Tech-style touring binders
  • Item #BLD3392
Shell Material
[shell] Pebax, [frame] Triax (polymer)
Flex
110
Buckles
3
Buckle Material
QuickWire
Liner
Efficient Fit AT
Thermo-moldable Liner
yes
Liner Closure
Boa
Walk Mode
yes
Sole
rubber
Binding Compatibility
alpine touring
Last Width
103mm
Claimed Weight
(single) 3 lb 9.9 oz
Recommended Use
alpine touring, freeride
Manufacturer Warranty
1 year

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