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Men's high-altitude boots La Sportiva G-Tech are lightweight and waterproof footwear designed for challenging conditions. Thanks to the BOA® Fit, Impact Brake, and Vibram® Ice-Tech systems, they provide excellent support, grip, and comfort in the mountains.

Basic data

Brand La Sportiva
Country of origin of the brand Italy
Sport Tourism
Gender Male
Season Year-round
Leading colour Black
Model/product code G-Tech ZFMS078999100
Purpose High mountain
Code 2000034282

Product details

Upper material Fabric
Height of the upper High
Reinforcements Partial lagging
Fastening type Quick lacing system
Technologies Impact Brake System, 3D Flex System, Vibram® Litebase, BOA® Fit System, Vibram® SpringLug Tech, Vibram® Ice-Tech
Weight 650 g

Outsole

Outsole Vibram® Ice-Tech
Compatibility with crampons Baskets, Semi-automatic machines, Vending machines
Inset Carbon-fibre nylon

Protection

Waterproof Yes
Insulation Yes

Warnings and producer's data

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

La Sportiva men's high alpine boots G-Tech black 31F999100 (ZFMS078999100)

Men's high-altitude boots La Sportiva G-Tech black/yellow are an excellent choice for professional mountain climbers seeking reliable footwear. This model was designed with the challenging conditions found at high altitudes in mind, and its advanced technological solutions provide proper protection and thermal comfort. Made from water-resistant materials and insulated, they guarantee thermal comfort even in the harshest weather conditions. Thanks to the high collar, these boots provide stability and ankle joint protection, which is crucial during extreme climbs.

Support and cushioning systems

The men's high-altitude La Sportiva G-Tech boots are equipped with advanced technologies such as the Impact Brake System, which helps reduce shocks during descents. This system significantly improves cushioning and increases grip, which is essential when moving over uneven terrain. Additionally, the 3D Flex System allows natural foot movement while providing stability and support. It is the perfect solution for those who need maximum control over every step.

Modern sole technologies

The Vibram® Ice-Tech sole used in the La Sportiva G-Tech model offers exceptional traction on ice and snow. The Vibram® SpringLug Tech technology further enhances flexibility and cushioning, translating into comfort during long climbs. Thanks to the Vibram® Litebase technology, the boots are lighter, minimizing foot fatigue during prolonged use.

Fitting systems

The men's high-altitude La Sportiva G-Tech boots feature the BOA® Fit System closure, which ensures precise and quick adjustment. The quick-lacing system allows easy and fast putting on and taking off the boots, which is especially useful during dynamic weather changes. Additionally, the partial rand reinforces the boot's construction, protecting it from mechanical damage.

Crampon compatibility

The La Sportiva G-Tech model is compatible with various types of crampons: semi-automatic, basket, and automatic, making it a versatile choice for different mountain activities. The nylon insert with a carbon fiber blend provides additional stability and support, which is crucial during climbs in demanding terrain.

Men's high-altitude boots La Sportiva G-Tech - features:

  • Advanced Impact Brake System technology for better cushioning;
  • 3D Flex System ensures natural foot movement and stability;
  • Vibram® Ice-Tech sole offering excellent traction on ice and snow;
  • Vibram® SpringLug Tech technology increasing flexibility and comfort;
  • Vibram® Litebase for a lighter boot construction;
  • BOA® Fit System for precise fitting;
  • Quick lacing enabling convenient putting on and taking off;
  • Partial rand reinforcing protection against mechanical damage;
  • Compatibility with semi-automatic, basket, and automatic crampons;
  • Water resistance and insulation for thermal comfort;
  • High collar providing ankle joint stability.
Impact Brake System
Innovative La Sportiva brand technology applied to the sole of mountain boots for walking shock reduction, traction support and improved ground grip. The unique placement of the tabs ensures maximum impact absorption.
3D Flex System
Technology patented by Italian brand La Sportiva involving a special lacing system between the upper and lower part of the shoe. It ensures a perfect fit to the calf for optimal wearing comfort.
Vibram® Litebase
The sole reduced by 30% of the total weight, by reducing its thickness, all while maintaining quality in terms of grip and durability.
BOA® Fit System
Fitting system, consisting of a strong line, hooks and an adjustable knob. It guarantees a stable and comfortable fit of the product to the shape of the body. The user has the possibility of very precise adjustment.
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.
Vibram® Ice-Tech
Vibram® sole dedicated to both climbing and navigating demanding terrain. It is divided into two spheres to optimise performance and grip. Ice-Tech maintains the performance, quality and durability of classic Vibram® soles.
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    roCristi

    Error

    These boots are G Tech, not Aequilibrium Top. There's a big difference between the two types of boots

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La Sportiva men's high alpine boots G-Tech black 31F999100

La Sportiva men's high alpine boots G-Tech black 31F999100

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La Sportiva men's high alpine boots G-Tech black 31F999100

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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