La Sportiva Aequilibrium ST GTX Mountaineering Boots - Lime Punch/Carbon - Size 47.5

The La Sportiva Aequilibrium ST GTX is a high-performance mountaineering boot designed for technical terrain and long approaches. Featuring a GORE-TEX Performance Comfort membrane, it offers reliable waterproofing and breathability to keep your feet dry and comfortable in all conditions. The upper is constructed from water-repellent high tenacity Nylon 60.6 with honey-comb zones and abrasion-resistant reinforcements, providing durability and support where you need it most. The Vibram SpringLug Tech sole with Impact Brake System delivers exceptional traction and shock absorption on rocky and uneven surfaces. With a semi-automatic crampon compatibility (B2), this boot is ideal for glacier travel, mixed terrain, and via ferrata.

Advantages

The Aequilibrium ST GTX combines lightweight construction with robust protection, making it a versatile choice for mountaineers and trekkers. The 3D Flex System Evo™ ankle support technology ensures natural movement while maintaining stability, reducing fatigue on long days. The full rubber rand protects against abrasion, and the EVA midsole with anti-abrasion PU film and TPU insert provides excellent cushioning and support for rear crampon attachment.

Suitable for

• Technical mountaineering
• Trekking and backpacking
• Via ferrata
• Glacier travel

Key specifications

• Membrane: GORE-TEX Performance Comfort
• Upper: Water-repellent high tenacity Nylon 60.6 with honey-comb zones
• Lining: GORE-TEX Performance Comfort
• Sole: Vibram SpringLug Tech with Impact Brake System
• Midsole: EVA with anti-abrasion PU film, TPU insert
• Crampon compatibility: Semi-automatic (B2)
• Weight (per boot, size 42): 630g
• Closure: Traditional lacing with hooks and loops
• Ankle support: 3D Flex System Evo™
• Protective rand: Full rubber rand
• Color: Lime Punch / Carbon
• Size (EU): 47.5
• Size (US Men's): 13.5
• Size (UK Men's): 12.5
• Gender: Men's
• Waterproof: Yes
• Breathable: Yes

Recommendations

For optimal performance, pair these boots with semi-automatic crampons and gaiters. Break them in gradually on shorter hikes before tackling technical routes. The Aequilibrium ST GTX is a reliable choice for alpinists seeking a balance of weight, support, and durability.