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  • La Sportiva - Synchro Alpine Touring Boot - Ocean/Lava

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  • La Sportiva - Synchro Alpine Touring Boot - Ocean/Lava

La Sportiva Synchro Alpine Touring Boot

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    • 25.5
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    • Ocean/Lava

    2 Reviews


    An illusion of sorts.

    La Sportiva's Synchro Sku Boot is kind of like an ambiguous image—like the vases that look like faces—in that some ways it looks like a ski mountaineering boot and in others it looks like an alpine touring boot. One thing's for sure, you won't feel like turning around when your high stoke spontaneously changes casual tours into skimo epics. Its roomy 102.5 last works with the thermo-moldable liner to create a comfortable housing for your foot as you two brave the steeps in search of a downhill that's worthy of this boot's rugged rowdiness.

    A carbon-infused vertebra makes the Synchro La Sportiva's stiffest boot ever built, meaning this boot is just as much a hard-charger as it is an easy-hiker. La Sportiva made the rest of this boot out of Grilamid for rigid durability that still weighs around three pounds per boot. The Vibram rubber sole has the traction necessary for rocky summits, and this boot is compatible with all tech bindings.

    • Beefy AT boot for the modern big ski enthusiast
    • Stiff 125 flex ideal for advanced skiers
    • Roomy 102.5 last enhances comfort for long touring days
    • Walk mode allows fifty degrees of rotation
    • Thermo-moldable liner improves warmth and comfort
    • Vibram sole assists on rocky bootpacks
    • Compatible with tech, Trab's TR2, and AT ski bindings
    • Item #LSP00E8

    Tech Specs

    Shell Material
    [shell] Grilamid [vertebra] carbon-reinforced Grilamid [cuff] Pebax [tongue] Double Power Grilamid [spoiler] Marfram
    Last Width
    Buckle Material
    Pegasus Plus
    Lean Angle
    12°, 14°, 16°
    Walk Mode
    yes, 50° range of motion
    Thermo-moldable Liner
    Overwrap Ultralon foam
    Liner Closure
    power strap
    Binding Compatibility
    tech, Trab TR2, AT
    Claimed Weight
    3lb 4oz [half, 27.5]
    Recommended Use
    backcountry skiing
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Durability Issues

    • Familiarity: I've put it through the wringer

    I have had the Spectre boot for 3 years and have skied it a ton. The Syncro has the same cuff. My buckles have been a consistent issue but something I was willing to put up with and replace since the cost is not too bad. That being said I recently noticed that the cuff on both of my boots has a stress fracture right where the walk-mode rail enters the cuff. This ends up allowing the boot to flex a good bit more than intended, making a softish boot soft and not very good for big lines.

    La Sportiva said that this is considered wear & tear and will not help out since the warranty only covers 1 year. I cannot recommend this boot with the combination of durability issues and a weak warranty, it's just not worth the risk.

    Backcountry Freeride Quiver of One

    Check out La Sportiva's in depth look into the Synchro/Shadow. If you have any questions feel free to reach out to me directly at or (801) 523-4052

    Decent, not the best

    • Familiarity: I've put it through the wringer

    Pros: Good weight to performance ratio, comfortable on my average shaped foot, ski decently well compared to 2nd gen Scarpa Maestrale RS (not RS2). I like the wrap-liners that tour well. For the small percentage of people who care, they climb rock/ice real well for how good they ski. An old TLT5 climbs better, but sucks for skiing, and a new Maestrale RS2 skis better, but is bulkier/less nimble for climbing.

    Cons: Lots of fiddly buckles...time consuming and annoying to deal with all day. Ski/walk mode device is weak, fiddly, and failed on me my 5th time out. After a fairly involved disassembly and lube, it hasn't happened again, but it lost my trust. I don't see these being very durable...lots of weak, protruding, fiddly plastic parts and bits everywhere. Sportiva clearly has a way to go before they are as competent of ski boot makers as some other companies.