La Sportiva Aequilibrium ST GTX Mountaineering Boots - Yellow/Black (EU 42)

The La Sportiva Aequilibrium ST GTX is a high-performance mountaineering boot designed for technical terrain, glacier crossings, and high-altitude trekking. Combining lightweight construction with robust protection, this boot features a water-repellent high tenacity Nylon upper with HoneyComb Guard™ and TPU film reinforcements for durability. The GORE-TEX Performance Comfort lining ensures waterproofing and breathability, keeping your feet dry in wet conditions. The Vibram® SpringLug Tech outsole with Impact Brake System provides exceptional traction on mixed terrain, while the semi-automatic crampon compatibility (C2) allows for secure attachment when needed. The 3D Flex System Evo™ lacing offers a precise fit, and the Nylon Carbon-Fiber insole delivers stability. Weighing approximately 630 g per boot (EU 42), the Aequilibrium ST GTX is ideal for mountaineers seeking a balance of performance and comfort.

Advantages

Lightweight yet durable construction for technical mountaineering. GORE-TEX lining ensures reliable waterproofing and breathability. Vibram® outsole with Impact Brake System enhances grip and shock absorption. Semi-automatic crampon compatible for glacier travel. Rigid flexibility provides support on uneven terrain.

Suitable for

• Technical mountaineering
• Glacier crossing
• High-altitude trekking
• Mixed terrain hiking

Key specifications

• Upper: Water-repellent high tenacity Nylon 60.6 with HoneyComb Guard™ and TPU film reinforcements
• Lining: GORE-TEX Performance Comfort
• Insole: Nylon Carbon-Fiber
• Midsole: Outer shell in rubber, inner part in expanded PU
• Outsole: Vibram® SpringLug Tech with Impact Brake System
• Crampon Compatibility: Semi-automatic (C2)
• Lacing System: Traditional with hooks and loops, 3D Flex System Evo™
• Weight per Boot (approx.): 630 g (Size EU 42)
• Flexibility: Rigid
• Waterproofing: Yes (GORE-TEX)
• Breathability: Yes (GORE-TEX)

Recommendations

For optimal performance, pair with semi-automatic crampons and gaiters. Ensure proper fit by trying on with mountaineering socks. Suitable for experienced mountaineers tackling technical routes.