La Sportiva Aequilibrium ST GTX boots
Aequilibrium ST GTX is the lightweight, technical boot ideal for via ferrata, trekking and crossings in glaciers and on mixed terrain. Maximum comfort is guaranteed thanks to the tongue with the soft snow guard on the collar. Exceptional walkability thanks to the innovative construction of the Double Heel™ heel: the very pronounced double-wedge rear geometry increases the braking effect downhill and allows a smoother rolling, reducing muscle fatigue. Durability and lightweight coexist in harmony thanks to the new outsole / midsole package with external Rubber Guard™ shell construction and internal foam material for accentuated cushioning and enhanced lightweight derived from less use of rubber layers. The shape is Ergonomic: enveloping and precise with TPU shells integrated in the toe and heel to reinforce the upper. The 3D Flex System Evo™ directional joint with shaped malleolus and abrasion resistant protection, allows better control of the support and perfect mobility of the ankle. The toe protection at the toe lacing protects against chafing. The midsole is semi-cramponable, the sole adopts a Vibram® SpringLug Tech tread with Impact Brake System lugs for greater adaptability to hard rock surfaces. Mountaineering in perfect harmony.
Features
- Snow guard in soft fabric
- Gusseted tongue for maximum wearing comfort
- Ergonomic, enveloping and precise shape with TPU shells integrated in the toe and heel to reinforce the uppers
- 3D Flex System Evo™ directional joint with shaped ankle and protected by an anti-abrasion TPU layer: allows better control of the support and perfect mobility of the ankle
- Uppers in HoneyComb Guard™ fabric with mono-burr wire reinforcements and TPU anti-abrasion film for protection and enhanced lightweight
- Hook fastening at the top, webbing at the bottom with lower anti-chafing gaiter for use with crampons
- Semi-crampon midsole compatible with semi-automatic crampons in case of ice or snow
- Uppers: Water-repellent high-tenacity Nylon 60.6 with abrasion resistant zones Honey Comb Guard
- Lining: GORE-TEX Performance Comfort
- Insole: Carbon loaded nylon
- Midsole: None
- Sole: Vibram® SpringLug Tech rubber and PU foam inner lining
- Real weight: 741 g (Uk 9.5)
Technologies
Gore-Tex®
Gore-Tex® fabrics offer long-lasting, comfortable weather protection. The technology is based on an extremely thin membrane made of expanded polytetrafluoroethylene (ePTFE). Its pores are too small for rain to penetrate, yet big enough for perspiration to pass right through. Gore-Tex® products have a high waterproof rating (water column) and can withstand up to 28,000 mm of water pressure – more than monsoon rain. The membrane is bonded between an outer fabric and a high-performance lining. Depending on the construction, the result is either a 2-layer, 2.5-layer or 3-layer laminate. Gore-Tex® in a 3-layer construction offers a combination of enhanced durability and high breathability, while the 2-layer laminate provides lightweight weather protection.
VIBRAM®
Vibram® soles, thanks to the combination of hyper-functional design and exclusive rubber compounds, ensure best performances in terms of comfort and lasting quality.
Impact Brake System
The innovative system is applied to the sole to absorb negative ground impact, help traction and improve grip downhill. Created and developed by the R&D department at La Sportiva, it offers real advantages during racing by reducing negative ground impact. The unique position of the lugs allows as many of them as possible to come into contact with the ground, for maximum impact absorption.
Aequilibrium
Equilibirum - a state that makes it possible to control the position and movement of the body in space. It stays also for harmonic: the synthesis between opposite and contrary forces. Aequilibrium Series: the perfect balance between comfort and technicality, lightweight and durability for the modern mountaineering.
3D Flex System
An innovative multidirectional hinge on the upper allows the ankle to make the most of its natural characteristics without losing stability. Enhanced foot control on difficult terrain. Larger sole surface in contact with the ground. Enhanced stability. Even better fit. More secure heel.