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Continue shoppingBoy's breathable durable non-slip sneaker.
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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Pick up of parcel at home
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Customer Service
Boy's breathable durable non-slip sneaker. Designed specially for those children who are starting to feel grown up and want to imitate their big brothers, these Perth Boy sneakers are ideal for a casual look and perfect for playtime and everyday life. With a breathable Geox-patented perforated sole made from durable non-slip rubber, this piece of footwear guarantees constantly dry feet and outstanding comfort levels. The upper has been made in a versatile easy-to-match black palette, whilst the lace-up and inside-leg-zip closure means this item is easy to put on and take off. It boasts a removable insole for the sake of convenience and hygiene which has been lined in non-toxic chrome-free leather, enhancing the sensation of wellbeing. A modern-looking piece of footwear which pampers the feet.
There is a perfect shoe for every child. We have them all.
Thanks to Geox’s high level of specialisation, GEOX knows how to ensure the correct development and wellbeing for young feet during every phase of growth.
Every so often children dream about being adults. That’s why we have designed a model for your children that is inspired by mum and dad’s shoes yet does not impede safety and comfort.
The classic Geox rubber sole is based on an exclusive patent: the combination of the perforated sole and the resistant breathable and waterproof membrane allow for natural temperature regulation, thereby creating the perfect microclimate inside the shoe that keeps feet dry and comfortable for the whole day.
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

The rubber sole is perforated and incorporates a special microporous membrane that absorbs and expels sweat without letting water in. The gradual elimination of moisture reduces feet overheating and creates an ideal, healthy microclimate inside the shoes, keeping feet warm and dry in the winter, and cool and dry in the summer.
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.