La Sportiva Olympus Mons S High-Altitude Mountaineering Boots - Yellow/Black, Size 39 EU

The La Sportiva Olympus Mons S is the ultimate high-altitude mountaineering boot, designed for extreme expeditions on 8000m+ peaks. This double boot system combines an insulated outer boot with a removable inner boot, providing exceptional warmth and protection in the most severe cold. The integrated gaiter with water-repellent TIZIP zipper keeps snow and moisture out, while the Vibram® Litebase sole with Impact Brake System ensures reliable traction on ice and mixed terrain.

Advantages

Exceptional thermal insulation with Primaloft Gold Aerogel in the toe box and multi-layer construction. The carbon fiber midsole with honeycomb insulation minimizes heat loss and provides rigid support for crampon use. Automatic step-in crampon compatibility ensures secure attachment. The boot is resoleable, extending its lifespan.

Suitable for

• High-altitude expeditions above 8000m
• Extreme cold environments
• Technical ice and mixed climbing
• Mountaineering in severe winter conditions

Key specifications

• Double boot system: outer + inner boot
• Outer: Cordura®, insulating felt, PE foam
• Inner: PE, EVA, Cordura®
• Insulation: Primaloft Gold Aerogel (toe box)
• Sole: Vibram® Litebase with Impact Brake System
• Midsole: Carbon Tech honeycomb, 3mm carbon fiber
• Crampon compatibility: Automatic (step-in)
• Closure: TIZIP zipper + Velcro strap (outer); fast lacing + Velcro (inner)
• Weight: approx. 1150g per boot (size 39)
• Resoleable: Yes

Recommendations

For extreme cold and high altitude, the Olympus Mons S offers unmatched warmth and performance. Ensure proper fit with the inner boot system. Compatible with automatic crampons. Ideal for serious mountaineers tackling the world's highest peaks.