La Sportiva Aequilibrium Speed GTX Mountaineering Boots - Black/Yellow, EU 46

The La Sportiva Aequilibrium Speed GTX is a high-performance mountaineering boot designed for fast and light ascents, technical alpine climbing, and high-altitude trekking. Combining cutting-edge technologies with a precise, ergonomic fit, this boot offers exceptional stability, waterproof protection, and durability in demanding mountain environments. The GORE-TEX Performance Comfort lining ensures breathable waterproofing, while the Vibram® Durastep outsole provides reliable traction on mixed terrain. With semi-automatic crampon compatibility (B2), the Aequilibrium Speed GTX is the ideal choice for mountaineers seeking speed without compromising safety.

Advantages

Lightweight yet robust construction for efficient movement; GORE-TEX membrane keeps feet dry and comfortable; Vibram® Durastep outsole delivers excellent grip and durability; 3D Flex System Evo enhances ankle mobility and precision; Integrated gaiter with quick-lacing system prevents debris entry; Carbon-loaded nylon insole provides torsional rigidity; Double-density PU midsole with external protective shell offers shock absorption and support.

Suitable for

• Technical mountaineering and alpine climbing
• Fast and light ascents on mixed terrain
• High-altitude trekking and glacier travel
• Approaches requiring semi-automatic crampons

Key specifications

• Brand: La Sportiva
• Model: Aequilibrium Speed GTX
• MPN: 647090
• EAN: 8058428189229
• Category: Mountaineering Boots
• Gender: Unisex
• Footwear Size (EU): 46
• Color: Black / Yellow
• Waterproofing: GORE-TEX Performance Comfort
• Upper Material: Water-repellent high-tenacity fabric with Honey-Comb Guard™ and TPU mudguard
• Lining: GORE-TEX Performance Comfort
• Insole: Carbon-loaded nylon
• Midsole: Double-density PU with external protective shell
• Outsole: Vibram® Durastep
• Crampon Compatibility: Semi-automatic (B2)
• Weight (approx.): 1060 g per pair (EU 42 reference; actual for EU 46 slightly higher)
• Closure: Laces with integrated gaiter and quick-lacing system
• Key Technologies: 3D Flex System Evo, Impact Brake System
• Lug Depth: 4.5 mm
• Footbed: La Sportiva Mountain Footbed
• Shaft Height: High-cut
• Sustainability: Partially recycled materials in some components

Recommendations

For optimal performance, pair these boots with semi-automatic crampons and gaiters. Ensure a proper fit by trying on with technical socks. The Aequilibrium Speed GTX excels in technical alpine routes where speed and precision are paramount. Regular cleaning and conditioning of the upper will extend the boot's lifespan.