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Continue shoppingMen's iconic breathable and waterproof sneaker - an amazing combination of cutting-edge technology and vanguard performance levels.
In order to guarantee you the perfect fit, Geox provides you also with the half size for the classic models.
As regards sport shoes, only the full size is available, but you can adjust the laces to find the perfect fit.
If you buy Geox for the first time, we would like to inform you that our classic shoes have a wide fit, so we recommend that you choose a half size smaller than your usual size.
Place your bare foot on a white sheet of paper with the heel against a vertical wall. Mark your longest toe on the paper. Measure the distance in mm from the wall to the mark with a ruler. Read the measurement obtained and the corresponding one in the "Foot length in mm" column and find the right size.
| EU | US | UK | Insole length (mm) | Foot size (mm) |
|---|---|---|---|---|
| 35 | 5 | 2.5 | 233 | 227 |
| 35.5 | 5.5 | 2.8 | 235 | 230 |
| 36 | 6 | 3 | 240 | 234 |
| 36.5 | 6.5 | 3.5 | 244 | 237 |
| 37 | 7 | 4 | 247 | 240 |
| 37.5 | 7.5 | 4.5 | 251 | 244 |
| 38 | 8 | 5 | 254 | 247 |
| 38.5 | 8.5 | 5.5 | 257 | 250 |
| 39 | 9 | 6 | 260 | 254 |
| 39.5 | 9.5 | 6.5 | 264 | 257 |
| 40 | 10 | 7 | 267 | 260 |
| 40.5 | 10.3 | 7.3 | 270 | 264 |
| 41 | 10.5 | 7.5 | 273 | 267 |
| 42 | 11 | 8 | 280 | 273 |
IT | DE | FR | US | UK |
|---|---|---|---|---|
| 38 | 32 | 34 | 2 | 4 |
| 40 | 34 | 36 | 4 | 6 |
| 42 | 36 | 38 | 6 | 8 |
| 44 | 38 | 40 | 8 | 10 |
| 46 | 40 | 42 | 10 | 12 |
| 48 | 42 | 44 | 12 | 14 |
| 50 | 44 | 46 | 14 | 16 |
| 52 | 46 | 48 | 16 | 18 |
| 54 | 48 | 50 | 18 | 20 |
In order to guarantee you the perfect fit, Geox provides you also with the half size for the classic models.
As regards sport shoes, only the full size is available, but you can adjust the laces to find the perfect fit.
If you buy Geox for the first time, we would like to inform you that our classic shoes have a wide fit, so we recommend that you choose a half size smaller than your usual size.
Place your bare foot on a white sheet of paper with the heel against a vertical wall. Mark your longest toe on the paper. Measure the distance in mm from the wall to the mark with a ruler. Read the measurement obtained and the corresponding one in the "Foot length in mm" column and find the right size.
| EU | US | UK | Insole length (mm) | Foot size (mm) |
|---|---|---|---|---|
| 39 | 6 | 6 | 260 | 251 |
| 40 | 7 | 6.5 | 267 | 257 |
| 41 | 8 | 7 | 273 | 263 |
| 41.5 | 8.5 | 7.5 | 277 | 266 |
| 42 | 9 | 8 | 280 | 270 |
| 42.5 | 9.5 | 8.5 | 283 | 273 |
| 43 | 10 | 9 | 286 | 277 |
| 43.5 | 10.5 | 9.5 | 290 | 280 |
| 44 | 11 | 10 | 293 | 284 |
| 45 | 12 | 10.5 | 300 | 291 |
| 46 | 12.5 | 11 | 306 | 298 |
| 47 | 13 | 12 | 313 | 304 |
IT | DE | FR | US | UK |
|---|---|---|---|---|
| 46 | 46 | 42 | 36 | 36 |
| 48 | 48 | 44 | 38 | 38 |
| 50 | 50 | 46 | 40 | 40 |
| 52 | 52 | 48 | 42 | 42 |
| 54 | 54 | 50 | 44 | 44 |
| 56 | 56 | 52 | 46 | 46 |
| 58 | 58 | 54 | 48 | 48 |
| 60 | 60 | 58 | 50 | 50 |
In order to guarantee you the perfect fit, Geox provides you also with the half size for the classic models.
As regards sport shoes, only the full size is available, but you can adjust the laces to find the perfect fit.
If you buy Geox for the first time, we would like to inform you that our classic shoes have a wide fit, so we recommend that you choose a half size smaller than your usual size.
Place your bare foot on a white sheet of paper with the heel against a vertical wall. Mark your longest toe on the paper. Measure the distance in mm from the wall to the mark with a ruler. Read the measurement obtained and the corresponding one in the "Foot length in mm" column and find the right size.
| EU | US | UK | Insole length (mm) | Foot size (mm) |
|---|---|---|---|---|
| 24 | 8 | 7 | 160 | 150 |
| 25 | 8.5 | 7.5 | 167 | 157 |
| 26 | 9 | 8.5 | 174 | 164 |
| 27 | 10 | 9 | 180 | 170 |
| 28 | 10.5 | 10 | 187 | 177 |
| 29 | 11 | 11 | 193 | 184 |
| 30 | 12 | 11.5 | 200 | 190 |
| 31 | 13 | 12.5 | 206 | 197 |
| 32 | 1 | 13 | 214 | 204 |
| 33 | 2 | 1 | 220 | 210 |
| 34 | 3 | 1.5 | 227 | 217 |
| 35 | 3.5 | 2.5 | 233 | 224 |
| 36 | 4 | 3 | 240 | 230 |
| 37 | 5 | 4 | 247 | 237 |
| 38 | 5.5 | 5 | 254 | 244 |
| 39 | 6 | 6 | 260 | 250 |
| 40 | 6.5 | 6.5 | 267 | 257 |
| 41 | 7 | 7 | 273 | 264 |
In order to guarantee you the perfect fit, Geox provides you also with the half size for the classic models.
As regards sport shoes, only the full size is available, but you can adjust the laces to find the perfect fit.
If you buy Geox for the first time, we would like to inform you that our classic shoes have a wide fit, so we recommend that you choose a half size smaller than your usual size.
Place your bare foot on a white sheet of paper with the heel against a vertical wall. Mark your longest toe on the paper. Measure the distance in mm from the wall to the mark with a ruler. Read the measurement obtained and the corresponding one in the "Foot length in mm" column and find the right size.
| EU | US | UK | Insole length (mm) | Foot size (mm) |
|---|---|---|---|---|
| 15 | 1 | 0,5 | 100 | 90 |
| 16 | 1,5 | 1 | 107 | 97 |
| 17 | 2 | 1,5 | 114 | 104 |
| 18 | 3 | 2,5 | 120 | 110 |
| 19 | 4 | 3 | 127 | 117 |
| 20 | 4.5 | 3.5 | 134 | 124 |
| 21 | 5.5 | 4.5 | 140 | 130 |
| 22 | 6.5 | 5 | 147 | 137 |
| 23 | 7 | 6 | 154 | 144 |
| 24 | 8 | 7 | 160 | 150 |
| 25 | 8.5 | 7.5 | 167 | 157 |
| 26 | 9 | 8.5 | 174 | 164 |
| 27 | 10 | 9 | 180 | 170 |
| 28 | 10.5 | 10 | 187 | 177 |
Standard shipping: free. Delivery within 3-5 business days.
Express shipping: 24.90 €. Delivery within 1-2 business days.
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Men's iconic breathable and waterproof sneaker - an amazing combination of cutting-edge technology and vanguard performance levels. Nebula 4x4 ABX is Geox's iconic hi-tech sneaker and it covers all comfort bases even when the weather is appalling. Geox Amphibiox technology means that the upper is waterproof, whilst the sole is based on a peerless blend of know-how whereby the Net Breathing System guarantees outstanding breathability and the exclusive Geox-patented perforations maintain an ideal micro-climate inside the shoe. The special lining with 3D spacers and the mounting insole in 3D mesh give you the feeling of having constantly dry feet. The EVA sole is lightweight, flexible and durable with extraordinary shock-absorption properties to protect against knocks, bumps and vibrations coming up from the ground. The insole is removable for the sake of hygiene and practicality and the midsole boasts marbled patterning which imbues it with contemporary overtones. With its 3D inserts, the tread is non-slip so you will always be steady on your feet and walk confidently. The upper comes in tumbled leather and nubuck leather in a dark-brown and cognac-coloured palette and boasts a wide toe as well as elasticated stays for an easy practical fit. A highly wearable outperforming waterproof piece of footwear that will be with you every step of the way - literally.
Amphibiox features advanced waterproof technology from the world of professional outdoor wear hidden in the form of a fashionable shoe. Be ready for everything the city throws at you, with Amphibiox, the perfect footwear choice for any condition.
Amphibiox is top of the range in terms of Geox’s waterproof products. It stands out from other waterproof shoes by employing the use of Geox’s pioneering waterproof and breathable sole, pairing it with a series of innovative technologies (including some of Geox’s own patents) on the upper, in order to achieve durable water resistance and breathability.
The special Amphibiox membrane protects against rain, mud and snow, leaving your foot completely dry. The high breathability helps with natural internal temperature regulation, removing moisture from the shoe and guaranteeing freshness or warmth depending on the external temperature.
Shoes featuring Amphibiox technology have been designed to provide different levels of water resistance depending on your needs. This model is recommended for outdoor activities, even in heavy rain.
Standard shipping: free. Delivery within 3-5 business days.
Express shipping: 24.90 €. Delivery within 1-2 business days.
Shipping Information
Pick up of parcel at home
Returns & Refunds
Customer Service

Amphibiox® is a range of high performance waterproof shoes developed to meet the needs of a varied range of situations and environmental conditions. Innovative technologies are combined to bring additional durable waterproof performance to the shoe upper and offer an unparalleled all around breathability: a special breathable, waterproof membrane protects both the sole and the upper, preventing water, mud and wet snow from getting to the feet, which stay warm and dry while breathing naturally.
RESPIRA means breathe, but above all, continuous innovation, research and experimentation, aimed at improving the quality of our experiences through the clothes and shoes we wear: this is a philosophy that combines creativity and performance, style and technology and respect for the environment and for people to create a simple and attractive balance between modern styling and long-lasting functionality.
Explore the experiences of those who have already discovered a new kind of freedom! Get inspired by their style, click and buy!