La Sportiva Aequilibrium ST GTX Mountaineering Boots - Lime Punch/Carbon - Size 42.5

The La Sportiva Aequilibrium ST GTX is a technical mountaineering boot designed for demanding alpine terrain, glacier crossings, and via ferrata. Featuring a GORE-TEX Performance Comfort membrane, it offers reliable waterproofing and breathability. The upper combines water-repellent nylon with Honey-Comb Guard for abrasion resistance and TPU reinforcements. The Vibram SpringLug Tech outsole with Impact Brake System provides excellent traction and shock absorption. Semi-automatic crampon compatible (B2), this boot is ideal for mixed terrain and technical climbs.

Advantages

Waterproof and breathable GORE-TEX membrane keeps feet dry during wet conditions. The Honey-Comb Guard protects against abrasion, while the 3D Flex System Evo ankle support ensures stability. The Impact Brake System reduces fatigue on descents. Resoleable construction extends the boot's lifespan.

Suitable for

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

Key specifications

• Membrane: GORE-TEX Performance Comfort
• Upper: Water-repellent Nylon, Honey-Comb Guard, TPU reinforcements
• Lining: GORE-TEX Performance Comfort
• Midsole: Half-crampon compatible, Rubber outer shell, PU foam, TPU insert
• Outsole: Vibram SpringLug Tech with Impact Brake System
• Crampon compatibility: Semi-automatic (B2)
• Weight: 1260 g per pair (size 42 EU)
• Lacing: Traditional with hooks and loops
• Ankle system: 3D Flex System Evo
• Footbed: La Sportiva Ergonomic
• Colour: Lime Punch / Carbon
• Size: 42.5 EU

Recommendations

For optimal performance, pair with semi-automatic crampons and gaiters. Suitable for advanced mountaineers seeking a lightweight yet durable boot for mixed alpine routes.