La SportivaSynchro Alpine Touring Boot - Men's

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
  • Reviews
  • Q & A

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.

Good review with detailed comments. Thank you.