Dynafit M Blacklight Alpine Touring Boot
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Description
The Dynafit Blacklight Men's Boot delivers lightweight performance at just 1140g per boot with a patented Hoji Lock System that eliminates play and maximizes power transfer in ski mode. Featuring an innovative Tech Gaiter instead of a conventional tongue, it protects against wind and snow while maintaining comfort during long approaches with 70° cuff rotation. Built for ambitious backcountry objectives, this boot combines speed, precision, and durability with reliable Vibram sole grip for technical terrain and steep descents.
Tech Specs
Features
- Lightweight Performance: Just 1140g per boot with 101mm last for precise yet comfortable fit
- Patented Hoji Lock System: Shell and liner lock together for maximum power transfer and zero play in ski mode
- Innovative Tech Gaiter: Replaces conventional tongue to protect against wind and snow while maintaining comfort
- 70° Cuff Rotation: Natural stride on long approaches with reliable Vibram sole grip on icy bootpacks
Dynafit M Blacklight Alpine Touring Boot
The men's Blacklight weighs a claimed 1,140 g per boot and combines a 70° cuff rotation, 101 mm last, carbon-reinforced Grilamid shell, and the Hoji Lock system. It targets long, technical ski mountaineering and fast backcountry touring where uphill efficiency matters but a race boot would sacrifice too much downhill support.
Is This the Right Boot for You?
CCBB Boot Ratings
CCBB Fit Profile
Why We Like It
- 1,140 g claimed weight per boot suits long ski mountaineering objectives.
- 70° cuff rotation produces a natural stride on extended approaches.
- Hoji Lock simplifies ski-to-walk transitions without removing the boot.
- Carbon-reinforced Grilamid shell improves lateral precision on steep terrain.
- Vibram sole adds traction on icy bootpacks and rocky scrambles.
- Tech gaiter replaces a conventional tongue, reducing snow ingress on long tours.
Best Uses
- Ski mountaineering
- Speed touring
- Long spring ski tours
- Technical traverses
- Lightweight daily backcountry touring
Bootfitter's Advice
The 101 mm last is moderately accommodating, but the Blacklight fits like a performance boot because the liner is thin and the shell is structured. The lower shell will likely feel wrap-tight, especially before heat molding or breaking in the liner. It suits medium-volume feet better than very wide or high-instep feet.
The heel pocket is secure for most skiers but not race-boot tight. Narrow heels may benefit from liner padding. Extensive shell work is less desirable given the carbon-reinforced construction, so starting with the correct shell shape is important.
Technical SpecificationsManufacturer specs. Click to expand.
Fit and Construction
- Weight
- 1,140 g per boot (claimed)
- Last
- 101 mm
- Flex
- 120
- Cuff Rotation
- 70°
- Shell
- Carbon-reinforced Grilamid
- Cuff
- Carbon-reinforced Grilamid
- Liner
- Dynafit Speed Liner
Features and Compatibility
- Walk Mode
- Hoji Lock
- Closure
- 2 buckles + power strap
- Binding Compatibility
- Tech (pin) bindings only
- Boot Sole
- Vibram
- Forward Lean
- 12° or 15°
- Best Use
- Ski mountaineering and speed touring
Compare the Dynafit M Blacklight Alpine Touring Boot
Dynafit M Blacklight vs. Dynafit Ridge Pro
The Blacklight is lighter and optimized for uphill speed. The Ridge Pro adds a stiffer flex, stronger downhill support, and a more powerful feel on wider skis.
Shop Dynafit Ridge Pro bootsDynafit M Blacklight vs. Scarpa F1 XT
Both occupy the light technical-touring category. The Blacklight offers 70° of cuff rotation and Hoji Lock. The F1 XT has a different lower closure and flex pattern that some skiers find more progressive on the descent.
Shop Scarpa F1 XT bootsDynafit M Blacklight vs. Atomic Backland Carbon
The Blacklight prioritizes low weight and a direct Hoji Lock system. The Backland Carbon typically offers more heat-molding flexibility and a smoother flex for general touring.
Shop Atomic Backland Carbon boots