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La Sportiva Aequilibrium ST GTX – technical high mountain boots for women, designed for demanding approaches and mountaineering. They combine the lightweight, durability, and waterproof properties of Gore-Tex® with a Vibram® sole and a rear edge for semi-automatic crampons. Ideal for long excursions in challenging terrain.  

Basic data

Brand La Sportiva
Country of origin of the brand Italy
Sport Tourism
Gender Woman
Season Autumn/Winter
Leading colour Black
Model/product code Aequilibrium ST GTX ZFMS099K00B15
Purpose Via ferrata, High mountain, Trekking/Hiking
Code 2000182028

Product details

Upper material Fabric
Lining Gore-Tex Performance Comfort
Height of the upper High
Reinforcements Full wrap
Fastening type Laces
Technologies Double Heel™, 3D Flex System Evo™, GORE-TEX® Performance Comfort, Vibram® SpringLug Tech, HoneyComb Guard™

Outsole

Outsole Vibram® SpringLug Tech
Compatibility with crampons Semi-automatic machines

Protection

Waterproof Yes
Insulation No

Warnings and producer's data

Producer La Sportiva S.p.A. | Via Ischia 2, 38030 Ziano di Fiemme, Włochy | info@lasportiva.com

Women's mountaineering boots La Sportiva Aequilibrium ST GTX black/aqua (ZFMS099K00B15)

La Sportiva Aequilibrium ST GTX women's high-altitude boots black/aqua are an excellent choice for mountain hiking enthusiasts seeking reliable footwear in challenging conditions. Made from durable fabric, they offer longevity and resistance to damage, making them ideal for prolonged use. The high boot shaft, equipped with a full rand, provides additional protection against rough terrain and adverse weather conditions.

Advanced GORE-TEX® and Vibram® technologies

The La Sportiva Aequilibrium ST GTX women's high-altitude boots black/aqua feature GORE-TEX® Performance Comfort technology, which ensures excellent waterproofing and breathability. This keeps your feet dry even in the toughest weather conditions. Additionally, the Vibram® SpringLug Tech outsole offers outstanding grip on various surfaces, enhancing comfort and safety during climbs.

Innovative design solutions

The La Sportiva high-altitude boots incorporate a range of modern features such as HoneyComb Guard™ and 3D Flex System Evo™. HoneyComb Guard™ reinforces the shoe’s structure while maintaining lightness and protection against mechanical damage. Meanwhile, 3D Flex System Evo™ allows natural foot movements, which is especially important when tackling steep ascents and descents.

Comfort and functionality

The La Sportiva Aequilibrium ST GTX women's high-altitude boots black/aqua are designed with maximum comfort in mind. Thanks to Double Heel™ technology, the boots provide extra cushioning, resulting in greater comfort during long hikes. The lace-up fastening allows precise adjustment to the foot, which is crucial for stability and confidence on your feet.

La Sportiva Aequilibrium ST GTX women's high-altitude boots – features:

  • High shaft providing additional protection;
  • Reinforcements in the form of a full rand increasing durability;
  • Upper material made from durable fabric;
  • GORE-TEX® Performance Comfort technology ensuring waterproofness and breathability;
  • Vibram® SpringLug Tech outsole providing excellent grip;
  • HoneyComb Guard™ technology reinforcing the shoe’s structure;
  • 3D Flex System Evo™ allowing natural foot movements;
  • Double Heel™ providing extra cushioning;
  • Lace-up fastening for precise fit;
  • Compatible with semi-automatic crampons.
Double Heel™
Two-part heel construction in trekking shoes. The part located under the heel ensures less strain on the leg muscles during long hikes. The part located closer to the toes ensures better control when descending.
3D Flex System Evo™
Technology used in the construction of the shoe's upper to protect the ankle joint from injury.
GORE-TEX® Performance Comfort
A versatile technology used in most trekking boots. It provides the boots with resistance to very adverse weather conditions. It is characterised by being waterproof, windproof and breathable.
Vibram® SpringLug Tech
This new technology consists of a rubber coating that offers superior protection and significant scratch resistance, as well as providing excellent grip. The low-density polyurethane content maximises comfort and also ensures that the sole adapts perfectly to uneven terrain.
HoneyComb Guard™
The hexagonal honeycomb structure creates a lightweight yet extremely durable protective layer. This design effectively absorbs impacts and reduces the risk of mechanical damage. It is ideal for demanding terrain, ensuring durability without adding weight.
  1. 100%

    plJoanna

    Robust

    Boots used only once, compatible with crampons, in my case basket crampons. Comfortable, solidly made.
    I hope they will last.

    Translated.Show original
  2. 100%

    plAleksandra

    High-mountain boots

    Comfortable, very lightweight for their appearance. They will definitely travel miles of mountain trails with me

    Translated.Show original
  3. 100%

    plAleksandra

    High-mountain boots

    There are no better shoes for hiking in the mountains

    Translated.Show original

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Women's mountaineering boots La Sportiva Aequilibrium ST GTX black/aqua

Women's mountaineering boots La Sportiva Aequilibrium ST GTX black/aqua

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Women's mountaineering boots La Sportiva Aequilibrium ST GTX black/aqua

Size Sizes table
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Sizes table

    Below you will find information that will help you choose the right size when buying La Sportiva shoes. All you will need is a tailor's tape measure.

    EU size 33 33,5 34 34,5 35 35,5 36 36,5 37 37,5 38 38,5 39 39,5 40 40,5 41 41,5 42 42,5 43 43,5 44 44,5 45 45,5 46 46,5 47 47,5 48
    UK size 1 1,5 2 2 2,5 3 3,5 3,5 4 4,5 5 5,5 6 6 6,5 7 7,5 7,5 8 8,5 9 9,5 9,5 10 10,5 11 11,5 11,5 12 12,5 13
    US M Size 2 2,5 3 3 3,5 4 4,5 4,5 5 5,5 6 6,5 6,5 7 7,5 8 8,5 8,5 9 9,5 10 10,5 10,5 11 11,5 12 12,5 12,5 13 13,5 14
    US W Size 3 3 4 4 4,5 5 5,5 5,5 6 6,5 7 7,5 7,5 8 8,5 9 9,5 9,5 10 10,5 11 11,5 11,5 12 12,5 13 13,5 13,5      
    AB Foot length (cm) 21 21,3 21,6 22 22,3 22,6 23 23,3 23,6 24 24,3 24,6 25 25,3 25,6 26 26,3 26,6 27 27,3 27,6 28 28,3 28,6 29 29,3 29,6 30 30,3 30,6 31

    How to measure the length of your foot - instructions in 4 steps

    1. Prepare a sheet of paper and set it on a hard, non-slippery surface - it is best to tape it to the floor.

    2 Stand barefoot on a piece of paper - distribute your body weight evenly and set your foot straight.

    3. Mark the tip of the big toe and the back of the heel - preferably holding the pencil vertically.

    4. Take off the foot and measure the distance between the marks - this is the length of the foot. Repeat for the other foot and choose a larger measurement, matching it to the size chart.

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