La Sportiva Aequilibrium ST GTX Mountaineering Boots - Yellow/Black, Size 44

The La Sportiva Aequilibrium ST GTX is a high-performance mountaineering boot designed for technical alpine terrain. Combining a lightweight construction with robust protection, it offers the perfect balance of support, precision, and comfort for demanding ascents and glacier crossings.

Advantages

Featuring a GORE-TEX Performance Comfort membrane, the boot ensures reliable waterproofing and breathability. The semi-cramponable Nylon and Carbon midsole with Double-Heel™ technology provides excellent braking and smooth rolling, while the Vibram® SpringLug Tech outsole with Impact Brake System™ delivers superior traction on mixed surfaces. The TPU external skeleton and honey-comb Guard™ reinforcements enhance durability without adding unnecessary weight.

Suitable for

• Technical mountaineering
• Glacier crossing
• High-altitude trekking
• Via ferrata

Key specifications

• Upper: Water-repellent high tenacity Nylon 60.6 with honey-comb Guard™ reinforcements, TPU external skeleton, and protective rand
• Lining: GORE-TEX Performance Comfort
• Midsole: Semi-cramponable Nylon and Carbon, PU foam with Double-Heel™ technology
• Outsole: Vibram® SpringLug Tech with Impact Brake System™
• Crampon Compatibility: Semi-automatic (B2 rated)
• Flexibility: Medium-stiff
• Closure: Lacing with hooks and loops
• Insole: La Sportiva Ergonomic, 5mm
• Footbed: 5mm high-density Nylon
• Gender: Unisex
• Size: 44 EU
• Color: Yellow / Black

Recommendations

For optimal performance, pair these boots with semi-automatic crampons. The medium-stiff flex provides ample support for technical climbing while remaining comfortable for long approaches. Break them in gradually before committing to a multi-day expedition.