Dynafit Blacklight Alpine Touring Boot Ski Boots - Touring Boots - Ski Mountaineering - Mens Dynafit 23
Dynafit Blacklight Alpine Touring Boot Ski Boots - Touring Boots - Ski Mountaineering - Mens Dynafit
Dynafit Blacklight Alpine Touring Boot Ski Boots - Touring Boots - Ski Mountaineering - Mens Dynafit
Dynafit Blacklight Alpine Touring Boot Ski Boots - Touring Boots - Ski Mountaineering - Mens Dynafit
Dynafit Blacklight Alpine Touring Boot Ski Boots - Touring Boots - Ski Mountaineering - Mens Dynafit 23
Dynafit Blacklight Alpine Touring Boot Ski Boots - Touring Boots - Ski Mountaineering - Mens Dynafit
Dynafit Blacklight Alpine Touring Boot Ski Boots - Touring Boots - Ski Mountaineering - Mens Dynafit
Dynafit Blacklight Alpine Touring Boot Ski Boots - Touring Boots - Ski Mountaineering - Mens Dynafit
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Dynafit Blacklight Alpine Touring Boot

$419.97 $699.95
Size
1 in stock
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Boot Fitters Advice
Description

The Dynafit Blacklight Alpine Touring Boot is a 1-kilogram-class carbon speed touring boot on a 101mm last, pairing a race-like 60-degree stride with firm-for-the-class power for fast tours and ski mountaineering.
Tech Specs
Features

  • Flex: No numeric index from Dynafit. Stiff and light for the class, close to a tongueless TLT6 Performance.
  • Weight: 1,078 g per boot (size 27.0) measured; Dynafit states 990 g at MP 26, a 1-kilogram-class weight.
  • Last: A 101mm last that fits on the wide side of medium, with a rectangular toe box and a taller instep.
  • Walk Mode: Ultra Lock System 5.0 with a hyperflexible tongueless flex for 60 degrees of range of motion.
  • Shell: Carbon-loaded Grilamid lower shell with a full carbon cuff for power transfer at low weight.
  • Liner: Thermo-moldable Dynafitter 5 liner.
  • Sole: Pomoca rubber touring sole with toe and heel welts and Master Step tech inserts, for pin-tech bindings only.
  • Closure: One Ultra Lock buckle plus a Twistfit instep dial and optional power strap.
  • Forward Lean: 15 or 18 degrees with the spoiler.
View details

1-Kilogram-Class Speed Touring Boot

Dynafit Blacklight Alpine Touring Boot

The Dynafit Blacklight Alpine Touring Boot is built for fit tourers who want race-like efficiency from a boot that fits a normal foot. A 101mm last fits the wide side of medium with a rectangular toe and a tall instep, and a carbon-loaded Grilamid nylon lower keeps the flex stiff for the weight, so a 90mm ski still gets driven. At 1,078 g per boot in a 27, with 60 degrees of cuff rotation and the Ultra Lock 5.0 lever that closes the cuff and walk mode together, the Dynafit Blacklight suits big vertical days and fast missions.

Expert Fit Review Fit profile and recommendations reviewed by CCBB bootfitters.

Is This the Right Boot for You?

Best For
Fit tourers and ski mountaineers who want a 1-kilogram-class boot for big-vertical days and fast missions, and who value a wide, accommodating fit and a race-like stride more than four-buckle downhill power.
Consider Another Boot If
You want the damp, progressive power of a heavier freeride touring boot, ski mostly wide resort skis, or need a numeric flex rating and a traditional buckle layout to feel confident driving a ski.

CCBB Boot Ratings

Uphill Efficiency
5/5
60 ROM at 1,078 g
Downhill Performance
3/5
Firm for its class
Walking Comfort
5/5
Race-like tongueless stride
Transition Speed
5/5
One-lever Ultra Lock

Rating scale: 5 = top of its class, 4 = excellent, 3 = good, 2 = specialized or below average, and 1 = limited.

CCBB Fit Profile

Overall VolumeMedium
Toe BoxWide
Forefoot VolumeWide
Instep HeightHigh
Heel HoldMedium
Ankle HoldMedium
PunchabilityModerate
Heat MoldableYes

Why We Like It

  • At 1,078 g per boot (size 27.0), the Dynafit Blacklight tours with the lightest speed boots while skiing firmer than most of them thanks to the full carbon cuff.
  • The 60-degree range of motion and hyperflexible tongueless walk mode give a long, low-friction stride for skinning, bootpacking, and scrambling.
  • The Twistfit instep dial wraps the midfoot evenly from the instep back toward the heel, taking up space over a taller instep without hot spots.
  • The carbon-loaded Grilamid lower shell and full carbon cuff transfer power well for a boot in the 1-kilogram class.

Best Uses

  • Ski mountaineering and technical objectives
  • Long, high-vertical tour days
  • Fast-and-light spring missions and traverses
  • Touring skis 85 to 100mm underfoot
  • Average to wide feet with a taller instep

Bootfitter's Advice

The Dynafit Blacklight Alpine Touring Boot fits on the wide side of medium on a 101mm last, with a roomy, rectangular forefoot and toe box, an above-average instep, and an average heel and ankle. The Dynafit Blacklight shares its shape with the TLT X, so skiers who fit that boot fit the Blacklight, and skiers who found narrow race lasts like the Scarpa F1 LT too tight usually find the Blacklight more comfortable.

The carbon-loaded Grilamid shell can be heat molded and punched a little for length or width, but not dramatically, so shell fit first and do not size up for comfort. The heel pocket is medium rather than a narrow locking pocket, so heel-lift-prone skiers may want a heel pad or a thicker aftermarket liner rather than a smaller shell; the thin stock Dynafitter 5 liner is the first thing many owners upgrade.

Fit profile reviewed by CCBB bootfitters. Final sizing should be confirmed with a shell fit whenever possible.

📏 Technical Specifications Manufacturer specs · Click to expand

Fit and Construction

Weight1,078 g per boot (size 27.0) as we weigh it. Dynafit states 990 g at MP 26.
Last101mm
FlexNot assigned a numeric flex index by Dynafit. Stiff and light for the class, comparable to a tongueless TLT6 Performance.
Range of Motion60 degrees
ShellCarbon-loaded Grilamid lower shell
CuffFull carbon cuff

Features and Compatibility

Walk ModeUltra Lock System 5.0, integrating the ski/walk mechanism with the top buckle
ClosureOne Ultra Lock buckle plus a Twistfit instep dial and an optional velcro power strap
Binding CompatibilityPin-tech (low-tech) bindings only. The lightweight Pomoca sole carries Master Step certified tech inserts but meets no alpine (ISO 5355) or touring (ISO 9523) sole norm, so it is not compatible with frame, MNC, or alpine bindings.
SolePomoca rubber touring sole with toe and heel welts for automatic crampons, plus Master Step tech inserts; meets no alpine or touring sole norm
Forward Lean15 degrees, 18 degrees with spoiler
LinerDynafitter 5, thermo-moldable

Compare the Dynafit Blacklight

Blacklight vs. Dynafit TLT X

The Dynafit Blacklight uses the same accommodating TLT X lower shell and Ultra Lock system, but adds a full carbon cuff that makes it a touch stiffer both fore-aft and laterally. The TLT X costs less and flexes a little softer, so skiers who want maximum value pick the TLT X, while those who want more power in the same fit pick the Blacklight.

Shop Dynafit TLT X boots

Blacklight vs. Scarpa F1 LT

Both are 1-kilogram-class speed boots that walk exceptionally well. The Scarpa F1 LT runs narrower and lower in volume with a BOA forefoot, while the Dynafit Blacklight fits wider and more rectangular with a Twistfit instep closure dial, so the choice comes down mostly to foot shape.

Shop Scarpa F1 LT boots

Blacklight vs. Tecnica Zero G Peak Carbon

The Tecnica Zero G Peak Carbon skis with a more progressive, ski-boot-like carbon flex and a generous toe box on a 99 mm last, while the Dynafit Blacklight is lighter to move in, wider through the forefoot, and quicker to transition with its single Ultra Lock lever.

Shop Tecnica Zero G Peak Carbon boots

Common Questions

Does the Dynafit Blacklight have a 130 or numeric flex?
No. Dynafit does not assign a numeric flex index to the Dynafit Blacklight. We find it stiff and supportive for a 1-kilogram carbon boot, close to a tongueless TLT6 Performance, but it is not a substitute for a heavier four-buckle boot with a stated 120 or 130 flex.
What bindings work with the Dynafit Blacklight?
The Dynafit Blacklight is built for pin-tech (low-tech) touring bindings only. The Dynafit Blacklight has Master Step certified tech inserts, but its lightweight Pomoca sole meets no alpine (ISO 5355) or touring (ISO 9523) norm, so it is not compatible with frame, MNC, or standard alpine bindings.
How does the sizing run?
Length runs close to true Mondo size, and the Dynafit Blacklight fits identically to the TLT X. Confirm with a shell fit rather than converting from street-shoe size, since the thin Dynafitter 5 liner leaves the shell doing most of the work.
How stiff is the walk mode and how good is the range of motion?
The Dynafit Blacklight offers 60 degrees of range of motion with a hyperflexible tongueless walk mode, so it strides close to a race boot. The Ultra Lock System 5.0 then locks the cuff firmly for the descent, though a small amount of built-in cuff play is normal in ski mode.
Can the Dynafit Blacklight drive a bigger ski?
Within reason. We pair the Dynafit Blacklight with touring skis 85 to 100mm underfoot and find it firm enough for variable snow at speed. Skiers charging wide resort skis will want a heavier four-buckle boot.
Is the Dynafit Blacklight warm enough for winter touring?
The stock Dynafitter 5 liner is thin and built for high-output days, so skiers with cold feet or long low-output winter tours often add a warmer aftermarket liner.
Is the Dynafit Blacklight the same as the new Blacklight 2.0?
No. The Dynafit Blacklight Alpine Touring Boot here is the carbon-cuff TLT X-based speed boot with the Twistfit dial and Ultra Lock system. The newer Blacklight 2.0 is a heavier, Hoji Lock, tongueless version built on the Ridge lower shell, sold separately.

Our Verdict

The Dynafit Blacklight Alpine Touring Boot is one of the more accommodating boots in the 1-kilogram class. The Dynafit Blacklight gives up the damp, four-buckle power of a heavier freeride touring boot, but in return it tours with the lightest speed boots on the market while skiing firmer than most of them. The full carbon cuff, the single-lever Ultra Lock transition, and the 60-degree range of motion make it a genuine tool for ski mountaineering and big-vertical days. The Dynafit Blacklight fits best on average to wide feet with a taller instep and an average heel, and it rewards skiers who value a fast, efficient uphill.