Free Shipping on Orders Over $50*


A ski-mountaineering and speed-touring machine.

When you require a lightweight, precise, powerful boot for your next ski-mountaineering adventure, look no further than the Sideral Alpine Touring Boot from La Sportiva. The Sideral is made with a Grilamid shell that is extremely lightweight. To help maintain the lightness but improve power and skiability, La Sportiva added carbon fiber reinforcements throughout the shell of the boot. Since long days in boots tend to be the norm in the mountains, a thermo-moldable Palau liner mitigates any chafing or hot spots before they become a problem. 

To keep your feet from freezing during alternating belay pitches, La Sportiva put in a removable WarmSole insert that prevents the loss of heat through the bottom of the boot. When speed matters, you'll appreciate the ease of the Fast-Lock System and the QuickBuckle upper that allows you to switch from ski to walk mode with the flick of a switch. When in walk mode, these boots provide a hefty 68-degree cuff rotation, perfect for sections of more technical climbing. A LazerGrip Outsole with dual-density rubber positions climbing rubber where you need it for grip, and softer, shock-absorbing rubber under your heel and ball of your foot to allow you to go for longer.

  • Grilamid shell
  • Carbon fiber reinforced
  • Nylon cuff
  • Pebax tongue
  • Thermo-moldable Palau EVA liner
  • WarmSole insert
  • Fast-Lock System with QuickBuckle upper
  • Ski/walk mode with 68-degree cuff rotation
  • Tech-binding compatible
  • LazerGrip Outsole dual-density rubber

Share your thoughts

What do you think of the

La Sportiva Sideral Alpine Touring Boot

? Share a...

Write a review

No file chosen

Rather attach a photo from another website?

Rather attach a photo from your computer?

    Add a:
  • Share a photo
  • Share a video


Only jpg, jpeg, png, gif or bmp files please.

Submit Cancel
Now review from the App. Download