La Sportiva Aequilibrium ST GTX Men's Mountaineering Boots Yellow/Black Size 47

Technical mountaineering and glacier travel demand footwear that balances stiffness, protection, and comfort over long approaches. The La Sportiva Aequilibrium ST GTX answers that call with a semi-automatic crampon-compatible boot that performs equally well on rock, snow, and mixed terrain. Its GORE-TEX Performance Comfort lining keeps feet dry without sacrificing breathability, while the 3D Flex System Evo™ ankle support allows natural articulation for efficient walking yet locks securely for climbing. The Honey-Comb Guard™ reinforcements and full rubber rand shield the upper from abrasion, and the Vibram® SpringLug Tech outsole with Impact Brake System™ delivers reliable grip on steep descents.

Who is it for

Men who tackle technical mountaineering routes, glacier traverses, via ferrata, and demanding trekking will appreciate this boot's medium-stiff flex and precise fit. It suits those who want one boot for both approach and climb, reducing pack weight without compromising performance.

Main features

• Waterproof and breathable GORE-TEX Performance Comfort membrane
• Semi-automatic (B2) crampon compatibility for technical ice and snow
• 3D Flex System Evo™ ankle support for mobility and stability
• Honey-Comb Guard™ TPU reinforcements and full rubber rand for durability
• Vibram® SpringLug Tech outsole with Impact Brake System™ for traction
• Traditional lacing closure for a customizable, secure fit
• Ergonomic 4mm MR footbed for all-day comfort
• Recycled materials in rand and upper reinforcements

Specifications

• Product type: Mountaineering Boots
• Gender: Men's
• Size (EU): 47
• Colour: Yellow / Black
• Upper material: Water-repellent Nylon 60.6, Honey-Comb Guard™ reinforcements, TPU rand
• Lining: GORE-TEX Performance Comfort
• Midsole: Polyurethane with TPU inserts, HoneyComb Guard™
• Outsole: Vibram® SpringLug Tech with Impact Brake System™
• Crampon compatibility: Semi-automatic (B2)
• Ankle support system: 3D Flex System Evo™
• Weight (per boot, size 42): 630 g
• Closure system: Traditional lacing
• Footbed: La Sportiva Ergonomic 4mm MR
• Flexibility: Medium-stiff
• Rand: Full rubber rand
• Sustainability features: Recycled materials in rand and upper reinforcements
• Breathability: Yes

Tips

For optimal performance, pair these boots with semi-automatic crampons and a compatible gaiter to keep snow out. Break them in on shorter hikes before attempting long glacier routes. Store in a cool, dry place away from direct sunlight to preserve the GORE-TEX membrane.