La Sportiva Olympus Mons S High-Altitude Mountaineering Boots - Yellow/Black, Size 45 EU

The La Sportiva Olympus Mons S is the ultimate high-altitude mountaineering boot, designed for extreme cold and 8000m+ expeditions. This double boot system combines a thermoformable inner boot with a water-repellent Cordura® stretch fabric outer gaiter, providing exceptional insulation and protection. The Vibram® Matterhorn sole with Impact Brake System ensures superior grip on ice and mixed terrain, while the Boa® Fit System allows precise, quick closure. Ideal for professional climbers and serious mountaineers facing the harshest conditions.

Advantages

Exceptional warmth with Primaloft Gold and Aerogel insulation; lightweight yet durable construction; automatic crampon compatibility; re-soleable design for extended lifespan; insulating carbon fiber midsole reduces cold transfer.

Suitable for

• High-altitude expeditions above 8000m
• Extreme cold environments
• Technical ice and mixed climbing
• Professional mountaineers and serious enthusiasts

Key specifications

• Double boot: inner thermoformable PE+EVA foam, outer Cordura® stretch fabric with gaiter
• Insulation: Primaloft Gold + Aerogel
• Sole: Vibram® Matterhorn with Impact Brake System
• Midsole: Insulating carbon fiber
• Closure: Boa® Fit System (outer), Velcro strap and laces (inner)
• Crampon compatibility: Automatic (step-in)
• Waterproofing: Highly water-resistant gaiter, waterproof construction
• Removable insulating footbed
• Re-soleable: Yes
• Color: Yellow/Black
• Size: 45 EU (11.5 US Men's, 10.5 UK)
• Gender: Unisex

Recommendations

For extreme cold and high-altitude climbing, the Olympus Mons S offers unmatched warmth and performance. Ensure proper fit by trying with thin socks; the thermoformable inner boot molds to your foot for customized comfort. Pair with automatic crampons for best results.