Hi Skimo!
Considering using these as a training and race boot (for longer grande-course style races) as well as light-weight touring. Is there a particular after-market liner that you would recommend for a lighter race setup while keeping the stock intuition liner for regular touring?
Cheers
SCARPA F1 LT Boot
Sometimes, when two things are combined, they produce something far greater than the original constituents. History is marked by such fusions: fire and meat, iron and carbon into steel, ski poles and ice axes, J-Lo and Shakira. Now, two of the best options for backcountry boots have joined forces to form the all-new, all-powerful F1 LT. By combining lightweight race features from the immensely popular Alien RS with the time-tested durable and reliable F1, SCARPA has created a boot that will change the game for years to come. While some boots may walk the line between race boot and touring boot, the F1 LT is the line. Built for long and fast tours as well as deep, technical descents, this is the boot for skiers who want to chase the most ambitious of objectives while spitting at the notion that skiability and weight are trade-offs.
The lower of the F1 LT was inspired by the Alien RS: made with a Carbon Grilamid LFT shell that is built with the same 3D Lambda Torsion Frame used by the RS to provide more direct power from your foot to the ski, the lower is secured by a simple Boa dial that cinches the waterproof gaiter across the top of your foot providing a quick, dry, and secure fit. Strategic cutouts on the exterior eliminate excess weight and material wherever possible while maintaining enough structural rigidity to drive high-fat skis with ease and confidence. The cuff (also made of the same Carbon Grilamid LFT) trades out the cord-closure of the RS for an F1 buckle strap to increase power and reliability and an additional removable powerstrap (+30g) for even more control on the descent. The spring-loaded ski-walk mechanism is easy to flip and provides an incredible amount of low-friction articulation that will make sure these boots are the last thing to hold you back when speeding uphill. The F1 LT is the boot that will make freeride skiers want to race and make racers want to freeride. Plus, a sexy orange-black paint job will give your ski partners something to look at as you fly past them in your new SCARPA F1 LT's.
- The prodigal child of two of SCARPA's most popular boots, the F1 LT sets the bar for other hybrid race/touring boots.
- Ankles rejoice! 72° degrees of motion is a 10° improvement over the F1 and is more akin to that of race boots.
- Carbon Grilamid LFT construction ensures the highest possible power-to-weight ratio.
- 3D Lambda Torsion Frame increases direct power transmission from foot to ski.
- Boa-secured waterproof gaiter will keep your feet cozy and dry.
- Dynafit Quick Insert tech fittings make stepping in a breeze.
- A surprisingly powerful race boot, or an impressively light touring daily driver, this boot can and will do it all.
- Forward lean can be adjusted by moving the ski/walk lever mounting position, with choices of 9°, 11°, or 13°.
- Removable rigid spoiler on the back of the liner is attached with Velcro so you can further tweak the forward lean (+/- 2°).
- Included power strap (+30 grams) pops on and off in a snap.
| Specifications | |
|
Weight |
995g [27] 1060g [28] |
| Weight (pair) | 1990g [27] 2120g [28] |
|
|
Velcro strap + BOA |
|
Boot Sole |
270mm [24] 278mm [25] 286mm [26] 294mm [27] 302mm [28] 310mm [29] 319mm [30] 327mm [31] |
|
Binding |
Tech only |
|
Cuff |
72° |
|
Forward |
9°, 11°, 13° (+/- 2°) |
| Specs Verified | Yes |
| Design | |
|
|
Carbon Grilamid LFT |
|
|
Intuition Cross Fit Tour LT |
|
|
Vibram UFO RS |
| Skimo Co Says | |
| Usage | Light and fast touring with confident downhill performance |
| Notes | Removable Velcro spoiler on the liner tweaks the Forward lean |
| Bottom Line | A light-as-possible touring boot that boasts the skiability of heavier boots |
| Compare to other Touring Boots | |
Related Products
Questions & Reviews
2/26/2022
2/26/2022
Hi Ori! With race boots, manufacturers frequently size down their shells to compensate for a thinner stock liner. If you have already selected a boot with the typical touring "1.5 finger shell fit," then a race-style liner may loosen your fit in such a way that outweighs the performance benefits of shaving some grams. That being said, the Alien RS liner, aka the Scarpa Cross Fit Tour, is slightly less beefy and would do well in this boot!
Answer this question:
2/23/2022
Hi - I have a new set up with Scarpa F1 LTs and a 90mm ski. I am thinking of trying to find some wider skis for powder days. I know I should not go too wide/heavy as the skis will overpower the boots, right? Could you confirm though it these boots would be compatible with Shift bindings (if I found a decent ski with these bindings instead of tech)?
2/23/2022
Hi Geoff,
The Scarpa F1 LT is not compatible with a shift binding. Officially, Scarpa states that driving a ski wider than 85mm underfoot with the F1 LT will void the warranty.
However, the F1 LT is impressively powerful for its weight, and plenty of folks have driven skis in excess of 85mm using that boot. If you plan to drive wide powder skis with your F1 LTs, less demanding conditions like soft powder will probably be fine. If you find yourself charging on hardpack and variable snow with a 100+mm ski, you will feel under-powered. For further questions on your deep snow quiver slot, feel free to reach out to help@skimo.co!
The Scarpa F1 LT is not compatible with a shift binding. Officially, Scarpa states that driving a ski wider than 85mm underfoot with the F1 LT will void the warranty.
However, the F1 LT is impressively powerful for its weight, and plenty of folks have driven skis in excess of 85mm using that boot. If you plan to drive wide powder skis with your F1 LTs, less demanding conditions like soft powder will probably be fine. If you find yourself charging on hardpack and variable snow with a 100+mm ski, you will feel under-powered. For further questions on your deep snow quiver slot, feel free to reach out to help@skimo.co!
Answer this question:
2/20/2022
How would one remove the quick clip on the back of the cuff to remove the power strap?
2/21/2022
Thanks for reaching out, Jon. Grabbing the two sides of the black strap, simply pull the quick clip upward and out (gently).
Answer this question:
1/31/2022
If I'm in a 29.5 Dalbello Krypton and Technica Zero G Tour Pro and want to size up for a new lightweight touring boot. If I went with the Scarpa F1 LT, would I likely want to go for the 30 or 31? I believe for the Dalbello and Technica, the 29/29.5 are same shell size. For the Scapra, are 29.5/30 the same shell or 30/30.5? Thanks!
1/31/2022
Hey Jeff, yes that is correct about the shell sizes. It's honestly tricky to say without knowing how the Krypton is fitting you currently. Give us a shout at our Online Boot Fitter so we could give you a more accurate recommendation!
Answer this question:
1/24/2022
Anyone else annoyed by the top power strap falling up the cuff against your shin during uphill use?
Maybe I just need to wrench those suckers down or take a knife to ‘em?
Maybe I just need to wrench those suckers down or take a knife to ‘em?
1/24/2022
Tim- We have seen that happen on some people's legs. You could always remove the power strap altogether using the quick clip on the back of the cuff.
3/28/2022
That used to happen on my Aliens - I tied some really thin cord around the lower fastening (which in this case would be the large power strap closure) and had a loop through which the upper power strap passed. That stopped it riding up (which was super annoying on climbs and sawed into my shin).
3/22/2023
Yes, the power slips up WAY too easily. The same thing also happened with my LS Sideral IIs.
So I quickly stitched on a small piece of Velcro loop and no problems now.
So I quickly stitched on a small piece of Velcro loop and no problems now.
Answer this question:
1/15/2022
I’m curious about how these perform with different skis… I’m thinking of mounting a pair of Volkl 90 eights (womens) and skiing them with the f1 lt. 98 underfoot and 1550 g/ski. What are the limits in terms of skis these boots can drive?
1/15/2022
Hi Eliza,
Officially, Scarpa states that driving a ski wider than 85mm will void the warranty on the F1 LT. However, plenty of folks have driven wider skis with great success.
It sounds like you are looking to pair these boots with a pretty beefy ski. I would think you could probably get away with it in softer snow. However, If you are skiing fast on hardpack or variable snow, you will probably want more boot than the F1 LT can provide. For further questions, feel free to reach out to help@skimo.co!
Officially, Scarpa states that driving a ski wider than 85mm will void the warranty on the F1 LT. However, plenty of folks have driven wider skis with great success.
It sounds like you are looking to pair these boots with a pretty beefy ski. I would think you could probably get away with it in softer snow. However, If you are skiing fast on hardpack or variable snow, you will probably want more boot than the F1 LT can provide. For further questions, feel free to reach out to help@skimo.co!
Answer this question:
1/8/2022
Morning guys!
Very exciting boot but still wondering how far can we push it.
What are your thoughts of these boots on "heavy" bc skis as Corvus Freebird?
I absolutely want to try it out but I don't really know what to expect in a downhill performance...
Very exciting boot but still wondering how far can we push it.
What are your thoughts of these boots on "heavy" bc skis as Corvus Freebird?
I absolutely want to try it out but I don't really know what to expect in a downhill performance...
1/8/2022
Hi Marcos, while the F1 LT can keep the reins on some of the lighter 100+ waisted skis, I think the boot may be overwhelmed by a heavier ski such as the Corvus Freebird.
Answer this question:
12/6/2021
Matteo
(used product a few times)
Great boot so far, much better then the RS in the downhill. However During the uphill the walk mechanism emits strange sounds (seems that it’s going to block for downhill). Does anybody had the same experience?
1/10/2022
Hi Matteo, one of my boots has a clicking sound as if some of the plastic is rubbing/catching between the cuff and the boot. I don't think it's the walk mechanism, but it is pretty annoying. Skimoco staff said it wasn't a problem they'd heard of before.
Comment on this review:
About 100 days in, from October couloirs to July glaciers...
Is this a great boot? Yeah, it is. But to me it fell in a weird place. Not light enough to justify its lack of power, not powerful enough to justify the weight.
For a weight savings, you can get the extremely similar Alien RS. For performance, you can pick any of the 1200g boots.
Enjoyed my time in them, well designed and comfortable and capable, but at the end of the day they're still a skimo boot, don't expect to be blasting breakable crust in them.
Is this a great boot? Yeah, it is. But to me it fell in a weird place. Not light enough to justify its lack of power, not powerful enough to justify the weight.
For a weight savings, you can get the extremely similar Alien RS. For performance, you can pick any of the 1200g boots.
Enjoyed my time in them, well designed and comfortable and capable, but at the end of the day they're still a skimo boot, don't expect to be blasting breakable crust in them.
11/29/2021
Hi Jordan, thanks for the feedback! FYI the F1 LT replaced the Alien RS in SCARPA's lineup, so that particular one is no longer an option.
Comment on this review:
10/20/2021
By "as well" do you mean questionable power transfer or unsafe b/c you'll pop out?
10/20/2021
Thanks for reaching out, Micah. The F1 LT offers an incredible performance to weight ratio, however, weighing in at less than a kilogram, it won't drive bigger skis/bindings as well as a beefier boot, such as the Tecnica Zero G Pro Tour. This boot won't have any retention issues when used with "tech" style bindings, however, this boot isn't compatible with heavier hybrid style bindings due to the lack of a sufficient heel welt, etc... Please let us know if you have any other questions!
Answer this question:
9/20/2021
Currently use a 27.5 in the F1 which fits very well. What would be a good size in the F1 LT? 27.0 or 28.0???
9/20/2021
Hey Matt, thanks for reaching out! 27.5 and 28 are the same shell size for SCARPA, so I'd start there. That being said, the F1 LT fits a bit narrower than the F1, but you can fill out our online Boot Fitting Form and we can delve into the details with you!
Answer this question:
These replaced a pair of Alien RS’s that I really liked. The Aliens were amazing, but I had trouble with the lack of volume in the forefoot, and the liners were wearing out fast. The F1LT definitely has a more generous fit in the forefoot, improving comfort and warmth in my case. The walk mode mechanism is great, and range of motion is the same as the Alien; tremendous. I think the cuff is a bit stiffer and more progressive than the alien as well, I’d say the boot descends a little better. The liner is beefier, and the gaiter seems to be holding up better too. If you were always wishing to rock the aliens but couldn’t make the fit work, the F1LT is worth a look.
Comment on this review:
5/29/2021
Would you be able to explain what makes the LT model only tech compatible? The heel looks similar to the standard F1, what's stopping these from working with Kingpin or similar freeride binding?
6/1/2021
Hey Nathan, thanks for the question! Our best guess is because the position of the walk mechanism differs and is located lower down on the spine of the boot from the F1, they just don't want to work as well with a binding like the Kingpin or Shift. Let us know if you have any more questions!
10/20/2021
Hi Zak, Micah,
I ended up mounting my Kingpins and playing around with the LTs. There are two issues, and while I'm in no way qualified to say for sure, I'd personally feel unsafe skiing the LTs with Kingpins. There are two heel compatibility issues. The Kingpin heel is alpine style, and clamps down on the top surface of your boot heel bump. The LTs have a smaller heel bump (not sure what else to call it, it is the part of the boot that locks into an alpine heel binding), so they can't fully engage. This causes them to really easily laterally eject from the heel when the binding is adjusted to the manufacturer's recommended spacing. The other issue is the walk lever. There's not enough clearance to flip the lever between modes with your boot locked down into the heel. Avoidable if you flip from walk to ski before stomping back into the heel, but annoying (and I think just a solid sign they shouldn't be used together).
-Nathan
I ended up mounting my Kingpins and playing around with the LTs. There are two issues, and while I'm in no way qualified to say for sure, I'd personally feel unsafe skiing the LTs with Kingpins. There are two heel compatibility issues. The Kingpin heel is alpine style, and clamps down on the top surface of your boot heel bump. The LTs have a smaller heel bump (not sure what else to call it, it is the part of the boot that locks into an alpine heel binding), so they can't fully engage. This causes them to really easily laterally eject from the heel when the binding is adjusted to the manufacturer's recommended spacing. The other issue is the walk lever. There's not enough clearance to flip the lever between modes with your boot locked down into the heel. Avoidable if you flip from walk to ski before stomping back into the heel, but annoying (and I think just a solid sign they shouldn't be used together).
-Nathan
Answer this question:
5/21/2021
I have a 25.5 Maestrale RS that fit pretty well that I've needed to punch out on the pinky bunion several times. What size of F1LT should I get? How much can the bunions be punched out?
5/22/2021
Hey Nick, Sorry, the F1 LT does not share the same fit as the Maestrale. They are much narrower and Scarpa does not recommend punching this boot out at all.
So it would not be the boot for you. Looking for something in this category, try the TLT 8 or maybe the Fischer Travers CS.
So it would not be the boot for you. Looking for something in this category, try the TLT 8 or maybe the Fischer Travers CS.
11/21/2021
I have punched the crap out of mine due to a bunion. Worked fine. You need a boot fitter with some confidence and sensitivity to the vagaries of the tricky material. Disaster looms for the ham-handed.
Answer this question:
3/16/2021
Hi! I have a pair of black crows freeride touring skis, 96 and 106 underfoot with dyn binding, i have a Maestrale RS, but thinking in something with better ankle mobilty, some lighter but still good downhill performance, F1 LT could be good option to drive this skis? Im not a beast skier in weight and power.
I use the 96mm with maestrales also on the resort, as for freeride powder and couloirs so will de F1 LT have enough power transmition to carve well on the piste as well good skiability on the pow?
Thanks for the help
I use the 96mm with maestrales also on the resort, as for freeride powder and couloirs so will de F1 LT have enough power transmition to carve well on the piste as well good skiability on the pow?
Thanks for the help
3/16/2021
Hi Gabriel,
The Scarpa F1 LT is quite powerful for its weight. However, at 995g in the 27.0 shell size, this boot does have its limits. I would not use this boot for lift-accessed laps, especially with the waist width of skis that you are looking to drive. Additionally, this boot is only compatible with tech bindings.
In softer backcountry conditions, you would be just fine on the 96mm waist width, but you will be maxing this boot out on the 106mm waisted ski. Another thing to mention, Scarpa states that this boot should not be paired with a ski above 85mm in the waist width, or you will void the warranty. That being said, plenty of folks use this boot to drive skis far wider than that in the backcountry with great success. If you have any further questions, reach out to us at help@skimo.co
The Scarpa F1 LT is quite powerful for its weight. However, at 995g in the 27.0 shell size, this boot does have its limits. I would not use this boot for lift-accessed laps, especially with the waist width of skis that you are looking to drive. Additionally, this boot is only compatible with tech bindings.
In softer backcountry conditions, you would be just fine on the 96mm waist width, but you will be maxing this boot out on the 106mm waisted ski. Another thing to mention, Scarpa states that this boot should not be paired with a ski above 85mm in the waist width, or you will void the warranty. That being said, plenty of folks use this boot to drive skis far wider than that in the backcountry with great success. If you have any further questions, reach out to us at help@skimo.co
Answer this question:
3/3/2021
I have skied with dynafit tlt 6 w/palau liners, which I really liked at the time. Then upgraded to tecnica zero g pro tours to get more dh performance. Now looking for a boot to ski a 40+ mile and 20 000+ feet traverse. I still have my old tlt’s and I wondering if the f1 lt would be worth the investment.
3/3/2021
Hi Jay,
I am sure you have read the reviews, so you know that the F1 LT lives up to the hype! It is lighter than your TLT6, while packing quite a punch on the way down. However, to really dial in the fit on a new boot, I would recommend filling out a Boot Fitter. A lighter boot will pay dividends over that distance and vert, and will most likely be worth the investment!
I am sure you have read the reviews, so you know that the F1 LT lives up to the hype! It is lighter than your TLT6, while packing quite a punch on the way down. However, to really dial in the fit on a new boot, I would recommend filling out a Boot Fitter. A lighter boot will pay dividends over that distance and vert, and will most likely be worth the investment!
Answer this question:
3/1/2021
Any idea when Scarpa will produce and distribute more F1 LTs in size 28? I’ve been scouring the planet (internet) and they are virtually non-existent. Any leads or updates would be appreciated!
3/1/2021
Hi Aaron, there likely won't be any surfacing until next season sadly.
Answer this question:
2/25/2021
I wear a 29 to 29.5 in Mondo boot sizing. What size F1 LT should I get? Thanks!
2/26/2021
Thanks for your question, Cary. Please visit our online bootfitter and we would love to give you personalized sizing/boot advice!
Answer this question:
2/19/2021
How do these boots compare to the La Sportiva Skorpius?
2/20/2021
Hey Kyle, while the F1 LT and Skorpius are in the same category there are definitely a few differences. While both are low-volume boots the Skorpius has more room in the toe box but a lower instep compared to the F1 LT. The Skorpius also is a stiffer boot making it more capable driving bigger skis.
Answer this question:
The search is over. What an amazing boot. Let’s just say I can get these for cheaper but chose to pay full price with skimo because of the service. I loved my time with their bootfitters.
The boot itself is amazing. My third boot and by far my favorite. I say the widest ski you want with these is 105 on powder (but you can ski anything in powder). Otherwise I would stick to 100 mm or less for underfoot.
The boot is durable. More durable than its heavier brother F1.
The fit is difficult. I ended up going up a whole size more than usual. Would not recommend buying online without a proper boot fit. Even then it’s a leap of faith. Spend the extra money for a proper foot bed with these too.
I wish scarpa could get the top strap figured out. I almost prefer a buckle but after getting used to how tight I like it it’s been much easier to figure out.
These things are mobile enough to drive in. Seriously.
The boot itself is amazing. My third boot and by far my favorite. I say the widest ski you want with these is 105 on powder (but you can ski anything in powder). Otherwise I would stick to 100 mm or less for underfoot.
The boot is durable. More durable than its heavier brother F1.
The fit is difficult. I ended up going up a whole size more than usual. Would not recommend buying online without a proper boot fit. Even then it’s a leap of faith. Spend the extra money for a proper foot bed with these too.
I wish scarpa could get the top strap figured out. I almost prefer a buckle but after getting used to how tight I like it it’s been much easier to figure out.
These things are mobile enough to drive in. Seriously.
Comment on this review:
Earn store credit by writing reviews. Learn more.
