1-Kilogram-Class Women's Ski Mountaineering Boot
Scarpa F1 GT W Alpine Touring Boot
Scarpa F1 GT W alpine touring boot is made for women seeking big days in the backcountry. At 1,010 grams and a 90 flex, the Grilamid Fiberglass LFT shell keeps big vert light on your legs without giving up confidence when you tip into a couloir. Two aluminum buckles and a power strap get you moving again in seconds at the transition, while the 100mm last fits most feet. 72 degrees of cuff rotation opens your stride for efficient skinning, while the Vibram UFO LT sole and tech inserts keep you locked in for the descent.
Expert Fit Review Fit profile and recommendations reviewed by CCBB bootfitters.
Is This the Right Boot for You?
Best For
Women who want a 1-kilogram-class ski mountaineering boot for big-vertical days, fitness touring, and spring lines, and who ski touring skis 80 to 100mm underfoot on pin-tech bindings.
Consider Another Boot If
You want a stiffer four-buckle boot for driving wide freeride skis, need frame or MNC alpine binding compatibility, or ski mostly inbounds, since the F1 GT W is a light, tech-only touring boot rather than a downhill charger.
CCBB Boot Ratings
Uphill Efficiency
72 cuff rotation, 1,010 g
Downhill Performance
Progressive, more than the LT
Walking Comfort
Long stride, two buckles
Transition Speed
Speed Lock LT lever
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 BoxMedium
Forefoot VolumeMedium
Instep HeightMedium
Heel HoldGood
Ankle HoldGood
PunchabilityModerate
Heat MoldableYes
Why We Like It
- At 1,010 grams per boot (size 25), the F1 GT W tours with the lightest women's ski mountaineering boots while adding two real buckles for power transfer.
- The 72-degree range of motion gives a long, low-friction stride for skinning and bootpacking.
- The Grilamid Fiberglass LFT shell and cuff flex more progressively than the carbon F1 LT, so the F1 GT W skis with a smoother, more predictable feel.
- Three forward-lean settings of 9, 11, and 13 degrees (plus or minus 2) let skiers tune stance angle.
- The Vibram UFO LT outsole adds grip on rocky ridgelines and icy spring approaches.
- The heat-moldable Intuition Tour LT 2 women's liner and a RECCO reflector round out a touring-focused build.
Best Uses
- Ski mountaineering and fast-and-light touring
- Long, high-vertical days and spring couloirs
- Touring skis 80 to 100mm underfoot
- Pin-tech (low-tech) binding setups
- Women with medium-volume feet and narrower heels
Bootfitter's Advice
The F1 GT W fits as a medium-volume boot on a 100mm last, with a snug, performance-oriented heel and a medium instep. After fitting many light-touring skiers, we find it holds a narrower heel well while leaving usable length, so most skiers take their true shell size rather than sizing up. The women's cuff is scalloped lower at the top for calf comfort, and otherwise the fit matches the men's F1 GT.
The Grilamid Fiberglass LFT shell accepts heat molding and moderate punching, so we can open the forefoot and sixth-toe area for wider feet, though the light shell has less material to work with than a heavier boot. The stock Intuition Tour LT 2 liner is thin and molds well, and skiers with cold feet on long winter days sometimes 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
Weight1,010 g per boot (size 25), 1,100 g at size 26, per skimo.co verified specs.
Last100 mm
Flex90, progressive. Softer and more progressive than the carbon F1 LT. Scarpa does not emphasize a numeric index, and verified retailers list 90.
Range of Motion72 degrees
ShellGrilamid Fiberglass LFT
CuffGrilamid Fiberglass LFT
Features and Compatibility
Walk ModeSpeed Lock LT ski/walk mechanism with 72 degrees of cuff rotation
ClosureTwo aluminum buckles with a power strap
Binding CompatibilityPin-tech (low-tech) touring bindings only. The Vibram UFO LT sole is a minimal touring sole not certified to ISO 9523, so the F1 GT W relies on its certified tech inserts and pin-tech bindings, and is not compatible with frame, MNC, or alpine bindings.
SoleVibram UFO LT touring sole (not ISO 9523 certified) with tech inserts
Forward Lean9, 11, 13 degrees (plus or minus 2)
LinerIntuition Tour LT 2 women's, heat-moldable
Compare the Scarpa F1 GT W
F1 GT W vs. Scarpa F1 LT Women
The Scarpa F1 LT Women is the lighter, carbon-infused sister at 990 grams, with a BOA forefoot and a stiffer but less progressive flex. The Scarpa F1 GT W drops the carbon for Grilamid Fiberglass LFT and adds two real buckles, so it skis with a smoother, more progressive feel and a touch more warmth for a small weight penalty.
Shop Scarpa F1 LT Women boots
F1 GT W vs. Scarpa F1 Women
The standard Scarpa F1 Women uses a BOA and cable closure with a single cuff buckle, tuned for quick, tool-free adjustment. The Scarpa F1 GT W swaps to a two-buckle closure and a warmer, gaiter-style build with a progressive Grilamid flex, so it favors skiers who want a more secure, ski-boot-like feel over the fastest transitions.
Shop Scarpa F1 Women boots
F1 GT W vs. Tecnica Zero G Peak Women
Both are 1-kilogram-class women's touring boots. The Tecnica Zero G Peak Women uses a carbon co-injected shell for a stiffer, more damped descent, while the Scarpa F1 GT W walks with a longer 72-degree range of motion and a more progressive flex. Skiers who put the descent first lean Zero G Peak; skiers who prioritize the climb lean F1 GT W.
Shop Tecnica Zero G Peak Women boots
Common Questions
Who should buy the Scarpa F1 GT W?
The Scarpa F1 GT W suits women who want a 1-kilogram-class ski mountaineering boot for big-vertical days, fitness touring, and spring lines. It fits best on medium-volume feet with a narrower heel, and it pairs with touring skis 80 to 100mm underfoot on pin-tech bindings.
What bindings work with the Scarpa F1 GT W?
The Scarpa F1 GT W works with pin-tech (low-tech) touring bindings only. Its Vibram UFO LT sole is a minimal touring sole that is not certified to ISO 9523, so the boot relies on its certified toe-and-heel tech inserts. It is not compatible with frame, MNC, or standard ISO 5355 alpine bindings. Confirm your bindings are pin-tech before mounting.
Is the Scarpa F1 GT W really a 90 flex?
Verified retailers list the F1 GT W at a 90 flex, but that number is not directly comparable to a stiff alpine boot. We find the Grilamid Fiberglass LFT shell skis with a progressive, forgiving flex rather than an abrupt wall, and it is softer and more progressive than the carbon F1 LT. Skiers wanting a firmer, more damped boot should look at a stiffer four-buckle touring boot.
How is the F1 GT W different from the F1 LT?
The Scarpa F1 GT W uses a Grilamid Fiberglass LFT shell and two buckles for a progressive flex and a warmer, gaiter-style build, while the F1 LT uses carbon and a BOA closure to save 20 grams and add stiffness. We find the F1 GT W more forgiving and progressive on the descent, and the F1 LT lighter and firmer for pure speed.
How does the sizing and fit run on the Scarpa F1 GT W?
The F1 GT W fits close to true Mondo length on a 100mm last, with a snug performance heel and a medium instep. We recommend a shell fit rather than converting from a street-shoe size, and most skiers take their true shell size rather than sizing up. The women's cuff sits slightly lower for calf comfort.
What foot shape fits the Scarpa F1 GT W best?
The F1 GT W fits medium-volume feet with a narrower heel and a medium instep. Skiers with wide forefeet or high insteps should plan on fit work, since the light Grilamid shell can be heat-molded and moderately punched but has less material to open up than a heavier boot.
How well does the Scarpa F1 GT W ski downhill?
For a 1-kilogram-class boot the F1 GT W skis well, with two buckles and a power strap driving a progressive Grilamid flex. It is happiest on touring skis 80 to 100mm underfoot in variable snow. Skiers charging wide freeride skis or skiing hard inbounds will want a heavier four-buckle boot.
Is the Scarpa F1 GT W warm enough for winter touring?
The F1 GT W adds a gaiter-style overlap and the Intuition Tour LT 2 liner for more warmth than a stripped race boot, which suits cold-weather ski mountaineering. The liner is still thin and touring-focused, so skiers with cold feet on long, low-output days sometimes add a warmer aftermarket liner.
What warranty does the Scarpa F1 GT W carry?
Scarpa North America covers the F1 GT W with a 1-year limited warranty from the original date of purchase for the original owner, against defects in materials and workmanship. Normal wear and bootfitting modifications such as punching or molding are not covered.
Our Verdict
The Scarpa F1 GT W is a strong choice for women who want a 1-kilogram-class ski mountaineering boot that skis better than a stripped race boot. It gives up the carbon stiffness of the F1 LT, but in return it flexes more progressively and adds two buckles for secure power transfer, while touring with a long 72-degree range of motion. The Vibram UFO LT sole and tech inserts keep it firmly in the pin-tech touring category, so it is not a resort or MNC boot. For a medium-volume, narrower-heeled foot chasing fast, efficient days with a real descent, the F1 GT W earns its place.
