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La Sportiva Stratos Cube

Brand: La Sportiva
Model: Stratos Cube
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Availability: In Stock & Ships Today
Price: $2998.95 $1598.95
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Before using the Stratos³ Cube boots in a World Cup race, be sure to weigh them and make sure they are over the 500g (17.64 oz) minimum weight mandated for shells plus dry inners by the International Ski Mountaineering Federation. The smaller sizes with the bikini liner will be cutting it close. Using a KarbonKevlar composite found in top of the line Formula 1 race cars, the Stratos Cube boots are a more durable shell than full carbon fiber boots at an even more shocking weight. If cutting corners to save some money isn't your thing, you might want to check out the latest creation from the La Sportiva team.

  • 100% KarbonKevlar cuff and shell, an ultralight abrasion resistant composite.
  • Patented CavoBike lever is a unique Ergal hinge system that provides stiffness and simple transitions.
  • Special Bikini Cube liner weighs just 80g (2.8oz) and Velcros snugly around your foot and calf.
  • Unique closure buckle has three macro settings with a dynamic cable for micro-regulation.
  • Optional rear spoiler included (+20g) to add a bit of stack height in the rear.
  • 5 forward lean positions from 5° to 19° lock into a receiving notch that doesn't contact the composite material.
  • Special bushing system prevents abrasion between cuff and shell during rotation.
  • Crampon compatible with an adjustable ring in the rear to get an exact fit.
  • Thin Vibram sole uses an anti-abrasion compound in the toe and heel for extra durability.
  • Zippered gaiter with adjustable inner straps protect your liners and socks from water while being easy to get in and out of.
  • Removeable Warm Sole sock liner adds some insulation while allowing for volume customization.

Specifications
Weight
-> ounces
592g [27]
Weight (pair) 1184g [27]
Buckles 1 w/ zippered gaiter
Boot Sole Length 262.1mm [24.5/25]
272.5mm [25.5/26]
283mm [26.5/27]
293.4mm [27.5/28]
303.8mm [28.5/29]
Binding Compatibility Tech only
Cuff Rotation 76°
Forward Lean(s) 5 from 5° to 19°
Specs Verified Yes
Design
Materials 100% KarbonKevlar
Liner Bikini Cube
Sole Vibram with reinforced heel & toe
Skimo Co Says
Usage Skimo racing, touring ridiculously far
Notes Special composite is more durable that carbon fiber.
Bottom Line Lightest ski mountaineering boot in the world.
1/3/2018
Question from Patrick
 
I wear a 26.5 for the Dynafit PDG and they fit great. What size would you recommend for these?
Thanks!
1/5/2018
Answer from Nate
 
Hi Patrick, this boot had a wider toebox, narrower midfoot, and an overall lower volume than the PDG does. Generally, if a 26.5 fits you in the PDG then that's your size in most other race boots but the internal shape will differ quite a bit and thus how well they fit.

I'd love to do a side by side comparison but this boot was discontinued a while back, so it's no longer available in the most common sizes.
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11/25/2017
Question from Tom
 
I have Scarpa Alien boots, size 26, would the La Sportiva Stratos Cube size 27 fit me. I haven't had a chance to try any of La Sportiva boots, but I hear they have a bit smaller sizes compare to other manufactures. Considering the Boot Sole Length is only 4mm bigger to Aliens...
11/25/2017
Answer from jbo
 
Hi Tom, it depends on your fit in the Aliens. If you're a very tight fit then yes you'd likely need to go up to 26.5/27 because the carbon boots cannot be punched. A looser fit and you'd have a good chance to get in the 26.0. The sole length is not a great way to precisely determine internal length.
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11/12/2014
Question from Joey D
 
Can the lower shells of the stratos be fitted? I'm guessing not, but am still curious.
11/12/2014
Answer from jbo
 
Hey Joey, full carbon boots aren't workable in the same way as plastic ones. I'm not going to say impossible but it's certainly a big challenge.
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