La Sportiva Aequilibrium ST GTX Mountaineering Boots - Yellow/Black, Size 46

The La Sportiva Aequilibrium ST GTX is a high-performance mountaineering boot designed for technical alpine terrain, via ferrata, and demanding trekking routes. Combining a lightweight construction with robust protection, this boot features a GORE-TEX Performance Comfort membrane for reliable waterproofing and breathability. The Vibram SpringLug Tech outsole with Impact Brake System ensures superior traction on mixed surfaces, while the semi-automatic crampon compatibility (B2) allows for secure attachment on icy sections. The 3D Flex System Evo™ provides natural ankle mobility without compromising support. Ideal for mountaineers seeking a versatile, durable boot for year-round adventures.

Advantages

Lightweight yet protective design with HoneyComb Guard and abrasion-resistant zones. GORE-TEX membrane keeps feet dry while allowing moisture to escape. Vibram outsole delivers excellent grip on rock, snow, and ice. Semi-automatic crampon compatibility enhances safety on technical terrain. The 3D Flex System Evo™ ensures smooth ankle movement for efficient climbing.

Suitable for

• Technical mountaineering and alpine trekking
• Via ferrata and mixed terrain
• Glacier travel and snow-covered ridges
• Demanding hiking with heavy loads

Key specifications

• Upper: Water-repellent Nylon 60.6, Honey-Comb Guard, abrasion-resistant zones
• Lining: GORE-TEX Performance Comfort
• Midsole: HoneyComb Guard, external TPU shell, internal EVA foam
• Outsole: Vibram SpringLug Tech with Impact Brake System
• Crampon compatibility: Semi-automatic (B2)
• Lacing: Hook lacing system
• Ankle mobility: 3D Flex System Evo™
• Weight: Approx. 650 g (half pair, size 42)
• Waterproof: Yes
• Breathable: Yes
• Protective features: Rubber rand
• Country of origin: Italy

Recommendations

For optimal performance, pair with gaiters and semi-automatic crampons. Break in the boots on moderate hikes before technical use. Regular cleaning and re-waterproofing will extend the life of the GORE-TEX membrane.