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La Sportiva OLYMPUS MONS CUBE S M 44 1/2

La Sportiva Olympus Cube S


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44 1/2





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Product Information

I purchased these boots for an expedition in Denali National Park for this 2021 season, which was ultimately cut short. Only spent 11 days in the boots and don't have a use for them in the next few years. They're in great shape with the exception of a few minor marks that could use some gear tape if desired:  

Left boot:

  • 1 tear on the back top of the gaiter that needs a patch
  • 2 very small crampon nicks on inside of gaiter that do not need a patch

Right boot:

  • 1 crampon nick on inside gaiter could potentially use a small patch if desired
  • 1 small tear on front toe box of boot could potentially use a small patch if desired

As is, even without taping the crampon nicks, the boots are good to go to take you up Denali and Everest. None of the damage affects the functionality of the boot, it's all cosmetic. The soles are in near perfect shape as the majority of the trip was spend with crampons on. I kept the liners dry with a boot dryer and stored them with a shoe deodorizer, there is no smell.  

I found the boots super comfortable and broke them in nicely :D. For my feet, which tend to run cold, they were awesome for early season Denali temps without the bootie on. With the bootie on these things are epically warm.  

I added a Sidas butterfly ankle volume reducers to the booties (blue); it's a stick on so if you do not want it you can just peel it off.

La Sportiva's Description

The OLYMPUS MONS CUBE S offers maximum warmth and minimal weight for alpinists crossing the coldest, most barren expanses and the highest most extreme mountains on earth. Dual BOA closure system allows you to fine tune the fit. Double removable PE and EVA thermal booties together with the Vibram, LITEBASE and MOREFLEX expanded EVA outsoles insulate and provide comfort and customization.

• Maximum thermal insulation with space-age technology

• Vibram® Litebase and Vibram® MorFlex® expanded EVA provide a lightweight, abrasion resistant and thermally insulated outsole (non-tech binding compatible on S  version)

• Click HERE for important heat moldable liner instructions

• Corner Zip™ zipper allows full opening and direct access to the Dual BOA® closure system

• Double removable thermal booties

• Dual BOA® system differentiates the lacing between the upper and lower portions of the internal boot, designed to be used with gloves


WEIGHT: 37 oz (1050g)
LAST: Olympus Mons
OUTER BOOT: Stretch Cordura® w/ UltraSonic Welding & Heat Sealing / Corner Zip™ Zipper Technology/ Water Repellent Gusset/ High Tenacity Nylon/ Multi-Density PE/ Thermo Reflective Aluminum lining/ Dual BOA® closure system/ Vibram® rubber rand
INNER BOOT: 6mm PE + EVA Single Density foam/ Cordura ® Fliz Zone/ Dual Velcro® Closure
4mm PE+EVA Single Density foam
INSOLE: 3mm Carbon Tech honeycomb insulation/ 3mm Primaloft® Gold Insulation Aerogel
MIDSOLE: 2mm graded Polyurethane for crampon attachment/ Skitrab Tech-AT toe insert
SOLE: Vibram® Litebase and Vibram® MorFlex® expanded EVA


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