La Sportiva Aequilibrium ST GTX Mountaineering Boots - Yellow/Black, EU 45

The La Sportiva Aequilibrium ST GTX is a high-performance mountaineering boot designed for technical alpine terrain, glacier travel, and heavy trekking. Featuring a GORE-TEX Performance Comfort membrane, it offers reliable waterproofing and breathability to keep your feet dry during intense activities. The boot combines lightweight construction with robust protection, making it ideal for demanding mountain adventures.

Advantages

Exceptional stability and support from the semi-automatic crampon-compatible sole (B2). The Vibram® SpringLug Tech outsole with Impact Brake System™ provides superior traction on mixed terrain. The Double Heel™ technology enhances heel hold and precision while descending. The integrated snow gaiter keeps debris out, and the traditional lacing system ensures a secure fit.

Suitable for

• Technical mountaineering
• Glacier travel
• Via ferrata
• Heavy trekking

Key specifications

• Upper: Water-repellent high tenacity Nylon 60.6 with HoneyComb Guard™ and TPU thermal adhesive film
• Midsole: PU foam with anti-abrasion TPU film, Rubber Guard™ outer shell
• Outsole: Vibram® SpringLug Tech with Impact Brake System™
• Waterproof membrane: GORE-TEX Performance Comfort
• Crampon compatibility: Semi-automatic (B2)
• Weight (per boot): 650 g (approx. for size EU 45)
• Color: Yellow / Black
• Closure: Traditional lacing with integrated snow gaiter
• Footbed: La Sportiva Ergonomic
• Gender: Unisex
• Resoleable: Yes

Recommendations

For optimal performance, pair these boots with semi-automatic crampons. The Aequilibrium ST GTX is a versatile choice for mountaineers seeking a lightweight yet durable boot for technical ascents and mixed terrain.