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LA Sportiva Olympus Mons Cube S is the non plus ultra of technicality for Himalayan technical mountaineering, arctic crossings and is used in extremely cold environments. It adopts the most advanced solutions available on the marketto guarantee warmth, lightweight, a quick fit,safety and water repellence for the mountaineer.
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Take on the world’s most demanding summits with the LA Sportiva Olympus Mons Cube S, a high-performance 8000-meter mountaineering boot designed for extreme alpine expeditions. Ideal for peaks like Everest, K2, and Denali, this boot blends maximum thermal insulation with minimal weight—perfect for high-altitude climbers.
Engineered with double-layer insulation, an integrated gaiter system, and a carbon fiber midsole, the Olympus Mons Cube S offers unmatched warmth, protection, and agility. Whether you’re facing sub-zero temperatures or rugged vertical ice, these LA Sportiva high altitude boots provide the confidence and durability elite climbers need.
Its unique BOA® closure system ensures a secure, customized fit even with gloves, while the Vibram® outsole delivers excellent grip on snow and ice. Trusted by professional alpinists, the Olympus Mons Cube S is a benchmark for extreme cold expedition boots.
Features
• 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
• Compatible with various non-automatic, semi-automatic, and automatic crampons. Crampon compatibility is NOT ensured, and boot-crampon compatibility needs to be inspected
| Feature | Specification |
|---|---|
| Weight (per pair) | 1,050 g (37 oz) |
| Boot Type | Double-boot high-altitude mountaineering boot (Cube S variant: no ski inserts) |
| Upper Materials | Stretch Cordura® with UltraSonic welding, internal heat sealing, high-tenacity nylon, multi-density PE |
| Gaiter | Integrated, water-repellent stretch Cordura® + internal gusset, heat-sealed and ultrasonic welded seams |
| Inner Liners | Two removable thermal booties: • 6 mm PE + EVA foam liner • 4 mm PE + EVA foam liner Includes thermo-reflective aluminum lining; insole with 3 mm Carbon-Tech honeycomb + 3 mm Primaloft® Gold Aerogel |
| Lacing System | Dual BOA® Fit System (independent upper/lower zones), operable with gloves |
| Closure Access | Corner Zip™ articulated zipper for full opening and direct BOA system access |
| Midsole | TPU 2 mm polyurethane with varied thickness at toe/heel, designed for crampon attachment |
| Outsole | Vibram® Litebase + Vibram® MorFlex® expanded EVA—abrasion-resistant, thermally insulating, crampon-compatible |
| Crampon Compatibility | Fully compatible with universal, semi-automatic, and automatic crampons (no ski-insert interference) |
| Last / Fit | Olympus Mons last; size up ½ from street shoe, with 1-finger heel room for comfort |
| Stiffness | Rigid structure for technical high-altitude use |
| Recommended Use | Expedition climbing above 7,000 m / 8,000 m peaks (e.g., Everest, K2, Denali), extreme cold environments |
| Origin | Made in Italy |
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