Scarpa F1 LT W

$674.25 $899.00
Size
3 in stock
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Boot Fitters Advice
Description

The Scarpa F1 LT W is a 915 g (size 25) women's carbon touring boot with a 100 mm last, lower cuff, 72-degree range of motion and a stiff, wall-like flex, built for fast ski mountaineering on pin-tech bindings.

Tech Specs
Features

  • Flex: 100 (Scarpa). A stiff, wall-like flex, firm rather than progressive, for skis up to 100 mm.
  • Weight: 915 g per boot (size 25), a 1-kilogram-class touring weight.
  • Last: 100 mm, a low-volume women's fit.
  • Walk Mode: Spring-loaded Speed Lock LT lever with 72 degrees of range of motion.
  • Shell: Carbon Grilamid LFT with 3D Lambda Torsion Frame.
  • Liner: Intuition Cross Fit Tour LT, heat-moldable.
  • Sole: Vibram UFO RS rockered touring sole with certified tech inserts, pin-tech only.
  • Closure: BOA forefoot dial, cuff buckle with Velcro strap and removable power strap.
  • Forward Lean: 9, 11 and 13 degrees, plus or minus 2 degrees with the liner spoiler.

Pinnacle of lightweight boots for fitness or ski mountaineering.

Women's 1-Kilogram-Class Ski Mountaineering Boot

Scarpa F1 LT W

The Scarpa F1 LT W is a 915 g (size 25) women's ski mountaineering boot with a 100 mm last, a stiff 100-flex feel, and a pin-tech-only Vibram UFO RS touring sole, built for women who want race-boot weight and walking with enough shell to drive an 85 to 100 mm ski. Carbon Grilamid LFT shell and cuff, a lower women's cuff, a BOA forefoot and a 72-degree range of motion pair a long stride with a wall-like descent flex.

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

Is This the Right Boot for You?

Best For
Fit women backcountry skiers with narrow, low-volume feet who want a 1-kilogram-class boot for long tours, ski mountaineering and technical descents, driving skis 85 to 100 mm underfoot with pin-tech bindings.
Consider Another Boot If
You have a wide forefoot or high instep, want a progressive rather than wall-like flex, need frame or MNC/alpine binding compatibility, or plan frequent resort laps where a heavier boot makes more sense.

CCBB Boot Ratings

Uphill Efficiency
5/5
72 ROM at 915 g
Downhill Performance
4/5
Stiff, wall-like flex
Walking Comfort
5/5
Long low-friction stride
Transition Speed
4/5
Lever plus cuff strap

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

CCBB Fit Profile

Overall VolumeLow
Toe BoxNarrow
Forefoot VolumeNarrow
Instep HeightLow
Heel HoldGood
Ankle HoldGood
PunchabilityLimited (carbon shell)
Heat MoldableYes

Why We Like It

  • At 915 g per boot (size 25), the F1 LT W tours at race-boot weight while skiing far better than most boots that light.
  • A lower, scalloped women's cuff improves fit for a lower calf without giving up support.
  • The 72-degree range of motion gives a long, low-friction stride for skinning, bootpacking and scrambling.
  • The Carbon Grilamid LFT shell and cuff hold a stiff, wall-like flex that drives skis up to 100 mm in firm snow.
  • The BOA forefoot dial micro-adjusts fit on the fly and seals a narrow foot evenly.
  • Three forward-lean settings of 9, 11 and 13 degrees, plus a removable liner spoiler, let skiers tune stance within the boot.

Best Uses

  • Ski mountaineering and technical objectives
  • Long, high-vertical tour days
  • Fast-and-light spring missions and traverses
  • Touring skis 85 to 100 mm underfoot
  • Women with narrow, low-volume feet

Bootfitter's Advice

The Scarpa F1 LT W fits as a low-volume boot on a 100 mm last, narrow through the forefoot with a low instep, a secure heel and a women's cuff that sits lower and scallops for a lower calf. We size it close to true Mondo and confirm with a shell fit; Scarpa builds full sizes only, sharing a shell with the half size above.

The carbon-infused Grilamid lower does not punch well, so women with wide forefeet, sixth-toe or bunion areas, or high insteps should plan on a careful shell fit or look at a punchable boot. The stock liner heat-molds and adds toe room, and the thin build packs out over time, so cold-footed skiers often add a warmer aftermarket liner.

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

Weight
915 g per boot (size 25). 980 g at size 26.
Last
100 mm
Flex
100 (Scarpa). A stiff, wall-like flex that is firm rather than progressive for the weight class.
Range of Motion
72 degrees
Shell
Carbon Grilamid LFT with 3D Lambda Torsion Frame
Cuff
Carbon Grilamid LFT, women's lower height

Features and Compatibility

Walk Mode
Spring-loaded Speed Lock LT ski/walk lever
Closure
BOA forefoot dial, cuff buckle with Velcro strap, plus removable power strap
Binding Compatibility
Pin-tech (low-tech) bindings only. The Vibram UFO RS sole is a lightweight rockered touring profile that is not certified to ISO 9523, so the F1 LT W is not compatible with frame, MNC, or alpine bindings.
Sole
Vibram UFO RS rockered touring sole (not ISO-certified) with certified tech inserts
Forward Lean
9, 11, 13 degrees (plus or minus 2 degrees with liner spoiler)
Liner
Intuition Cross Fit Tour LT, heat-moldable

Compare the Scarpa F1 LT W

F1 LT W vs. Scarpa F1 W

The classic F1 W is a tongued boot with a 102 mm last, a 62-degree range of motion and a warmer liner at 1,094 g. The F1 LT W saves over 150 g per boot, walks with 10 more degrees of motion and skis a stiffer flex, but gives up the F1 W's easier-fitting, punchable shell.

Shop Scarpa F1 W boots

F1 LT W vs. Scarpa F1 LT (Unisex)

The women's F1 LT shares the unisex 100 mm lower and 72-degree range of motion but adds a lower, scalloped cuff and a smaller size run for a lower calf. Women who found the taller unisex cuff uncomfortable usually fit the F1 LT W better.

Shop Scarpa F1 LT boots

F1 LT W vs. Tecnica Zero G Peak Women's

The Zero G Peak Women's skis a more progressive flex and pairs an ISO 9523 sole with tech inserts, while the F1 LT W is lighter, walks with a longer stride and uses a BOA forefoot but is strictly pin-tech.

Shop Tecnica Zero G Peak Women's boots

Common Questions

Who should buy the Scarpa F1 LT W?
The Scarpa F1 LT W suits fit women tourers with narrow, low-volume feet who want a 1-kilogram-class boot for big days and ski mountaineering but still expect to drive skis 85 to 100 mm underfoot. It rewards skiers who value a long, efficient stride.
How is the F1 LT W different from the unisex F1 LT?
The F1 LT W shares the unisex 100 mm carbon lower and 72-degree range of motion, but adds a lower cuff scalloped for a lower calf and comes in a smaller size run. The fit through the foot matches the unisex boot; the difference is at the cuff.
Is the Scarpa F1 LT W really a 100 flex?
Scarpa lists the F1 LT W near a 100 flex, but we find it skis as a stiff, wall-like flex rather than a progressive alpine 100. It is firm and supportive for the weight, yet it hits a hard stop rather than flexing smoothly, which is normal for a tongueless carbon boot.
What bindings does the Scarpa F1 LT W work with?
The Scarpa F1 LT W is a pin-tech-only boot. Its Vibram UFO RS sole is a lightweight rockered touring profile that Scarpa does not certify to ISO 9523, so it works only with pin-tech (low-tech) touring and race bindings and is not safe in frame, MNC, or ISO 5355 alpine bindings. Certified tech inserts are required for pin bindings.
Can the Scarpa F1 LT W be punched for wide feet?
Only slightly. The F1 LT W uses a carbon-infused Grilamid lower that resists punching, so a skilled fitter can gain a couple of millimeters at most. Women with wide forefeet or bunions usually do better in the wider, punchable classic F1 W.
How does the Scarpa F1 LT W sizing run?
The F1 LT W runs close to true Mondo length and comes in full sizes only. Scarpa shares a shell between a full size and the half size above, differing only in liner pre-molding. Confirm with a shell fit rather than a street-shoe conversion.
Is the Scarpa F1 LT W warm enough for winter touring?
The F1 LT W uses a thin Intuition Cross Fit Tour LT liner built for high-output days, and its low-volume shell limits how thick a liner it can hold. Women with cold feet or long, low-output winter days often add a warmer aftermarket liner or an overboot.
Should I choose the F1 LT W or the F1 W?
Choose the F1 LT W for the lightest weight, a longer stride and a stiffer flex if your foot fits the narrow carbon lower. Choose the classic F1 W for a wider, punchable 102 mm shell, a warmer liner and a smoother, progressive flex.

Our Verdict

The Scarpa F1 LT W puts the 1-kilogram-class F1 LT into a women's fit, with a lower cuff on a narrow 100 mm carbon lower. It tours at race-boot weight with a 72-degree range of motion and skis a stiff, wall-like flex that handles skis up to 100 mm. It fits best on narrow, low-volume feet, does not punch well, and is strictly pin-tech, so it rewards committed women tourers.