LA SPORTIVA Aequilibrium ST GTX Mountaineering Boot Carbon/Lime Punch 44.5

The LA SPORTIVA Aequilibrium ST GTX is a high-performance mountaineering boot designed for technical alpine terrain, glacier travel, and via ferrata. Combining lightweight construction with robust protection, it features a GORE-TEX Performance Comfort lining for waterproof breathability and a Vibram® SpringLug Tech outsole with Impact Brake System™ for superior traction. The boot is semi-automatic crampon compatible (B2) and incorporates innovative technologies like the 3D Flex System Evo™ and Double Heel™ for precise fit and stability.

Advantages

Lightweight yet durable, the Aequilibrium ST GTX offers excellent support and comfort for long approaches and technical climbs. The Honey-Comb Guard™ reinforcements and TPU external skeleton provide abrasion resistance, while the Rubber Guard™ external shell protects the midsole. The traditional lacing system with hooks and loops ensures a secure fit.

Suitable for

• Technical mountaineering and glacier travel
• Via ferrata and backpacking
• Mixed terrain requiring semi-automatic crampons

Key specifications

• Upper: Water-repellent high tenacity Nylon 60.6, Honey-Comb Guard™ reinforcements, TPU external skeleton
• Lining: GORE-TEX Performance Comfort
• Midsole: Half-cramponable TPU inserts, PU foam, Rubber Guard™ external shell
• Outsole: Vibram® SpringLug Tech with Impact Brake System™
• Weight per boot: 630g (size 42.5 EU)
• Size: 44.5 EU (US Men's 11, UK 10.5)
• Color: Carbon / Lime Punch
• Waterproof and breathable

Recommendations

For optimal performance, pair with semi-automatic crampons and gaiters. The boot runs true to size; consider a half size up for thicker socks.