La Sportiva Aequilibrium ST GTX Mountaineering Boots - Lime Punch/Carbon, Size 47

The La Sportiva Aequilibrium ST GTX is a high-performance mountaineering boot designed for technical alpine terrain, glacier crossings, and demanding treks. Combining lightweight construction with robust protection, it offers excellent support and comfort for long days in the mountains. The boot features a GORE-TEX Performance Comfort lining for reliable waterproofing and breathability, keeping your feet dry in wet conditions. The upper is made from water-repellent nylon with Honey-Comb Guard™ reinforcements and an all-round TPU rand for durability and protection against abrasion. The semi-cramponable PU midsole with external TPU shell and EVA foam provides stability and shock absorption, while the Vibram® SpringLug Tech outsole with Impact Brake System™ ensures superior traction on mixed terrain. The carbon-loaded nylon footbed adds torsional rigidity for edging and crampon use. With a medium-stiff flex and traditional lacing system, the boot delivers precise fit and control. The Double Heel™ construction and 3D Flex System Evo™ enhance heel hold and ankle mobility. This boot is semi-automatic crampon compatible (B2).

Advantages

Lightweight yet durable construction for technical mountaineering. Reliable GORE-TEX waterproofing and breathability. Excellent traction with Vibram® outsole and Impact Brake System™. Semi-automatic crampon compatibility for glacier travel. Comfortable fit with ergonomic design and recycled materials.

Suitable for

• Technical mountaineering
• Glacier crossing
• Via ferrata
• Demanding trekking

Key specifications

• Boot Type: Mountaineering
• Waterproofing: GORE-TEX Performance Comfort
• Upper Material: Water-repellent Nylon 60.6, Honey-Comb Guard™ reinforcements, TPU rand
• Lining: GORE-TEX Performance Comfort
• Midsole: Semi-cramponable PU with external TPU shell, EVA foam
• Outsole: Vibram® SpringLug Tech with Impact Brake System™
• Footbed: Carbon-loaded nylon
• Crampon Compatibility: Semi-automatic (B2)
• Weight (single boot, size 42): 630 g
• Closure System: Traditional Lacing
• Flex Rating: Medium-Stiff
• Key Technologies: Double Heel™ construction, 3D Flex System Evo™
• Protective Rand: All-round TPU rand
• Color: Lime Punch / Carbon
• Size (EU): 47
• Intended Use: Technical mountaineering, glacier crossing, via ferrata, demanding trekking
• Fit: Ergonomic, precise, comfortable for long use
• Sustainability Features: Laces and rand made from recycled materials

Recommendations

For optimal performance, pair these boots with semi-automatic crampons and gaiters. Ensure proper fit by trying on with mountaineering socks. Break in before extended trips.