La Sportiva G-Summit High-Altitude Mountaineering Boots - Black/Yellow (EU 41.5)

The La Sportiva G-Summit is a high-altitude mountaineering boot designed for extreme cold and technical terrain. Built with a water-repellent Nylon 6.6 upper and Honeycomb Guard™, it offers durability and protection. The integrated gaiter features elastic, water-repellent Cordura® for snow and debris resistance. Inside, a 4-layer insulation system (Cordura®, anti-drag felt, polyethylene, aluminum) combined with Gore-Tex® Insulated Comfort lining ensures warmth and waterproofing. The BOA® Fit System on the inner boot provides a precise, secure fit, while the external zipper allows easy on/off. The Vibram® Matterhorn outsole with Impact Brake System™ delivers exceptional traction on ice and rock. Automatic crampon compatible (B3 rated).

Advantages

Exceptional thermal insulation for extreme cold; waterproof Gore-Tex® membrane; durable Honeycomb Guard™ upper; precise BOA® Fit System; reliable Vibram® outsole with Impact Brake System™; automatic crampon compatibility.

Suitable for

• High-altitude mountaineering
• Technical ice climbing
• Mixed climbing
• Expeditions in extreme cold

Key specifications

• Upper: Water-repellent Nylon 6.6 with Honeycomb Guard™
• Gaiter: Elastic, water-repellent Cordura®
• Inner boot: 4-layer insulation (Cordura®, anti-drag felt, polyethylene, aluminum)
• Lining: Gore-Tex® Insulated Comfort
• Insole: 2mm insulating carbon fiber with perforated EVA
• Midsole: High-density PU with EVA insert for crampon attachment
• Outsole: Vibram® Matterhorn with Impact Brake System™
• Crampon compatibility: Automatic (B3 rated)
• Closure: BOA® Fit System (inner boot), External zipper (gaiter)
• Waterproofing: Yes
• Flexibility: Rigid
• Fit: Precise, technical
• Colour: Black/Yellow
• Size (EU): 41.5
• Size (US Men's): 8.5
• Size (UK): 7.5

Recommendations

For extreme cold and technical alpine routes, the G-Summit provides the warmth and precision needed. Ensure proper fit with mountaineering socks. Compatible with automatic crampons.