Check the size we recommend for your measurements
- A Chest Measure around the narrowest part of your waist, keeping the tape horizontal
- B Waist Keeping both feet together, measure around the fullest part of your hips, keeping the tape horizontal
- C Hip Measure from the crotch to the bottom of the leg
| Talla | Pecho (A) | Cintura (B) | Cadera (C) |
|---|---|---|---|
| S | 87 - 94 | 75 - 82 | 86 - 93 |
| M | 95 - 101 | 83 - 90 | 94 - 100 |
| L | 102 - 108 | 91 - 97 | 101 - 108 |
| XL | 109 - 114 | 98 - 103 | 109 - 113 |
| XXL-3XL | 115 - 143 | 104 - 134 | 114 - 138 |
| Nota: medidas en centímetros (cm) | |||
| Talla | Pecho (A) | Cintura (B) | Cadera (C) |
|---|---|---|---|
| S | 34 - 37 | 29 - 32 | 34 - 37 |
| M | 37.5 - 40 | 32.5 - 35 | 37.5 - 40 |
| L | 40.5 - 43 | 35.5 - 38 | 40.5 - 43 |
| XL | 43.5 - 45 | 38.5 - 41 | 43.5 - 45 |
| XXL-3XL | 45.5 - 56 | 41.5 - 53 | 45.5 - 54 |
| Nota: medidas en pulgadas (in) | |||
- A Waist Measure around the narrowest part of your waist, keeping the tape horizontal.
- B Hip Keeping both feet together, measure around the fullest part of your hips, keeping the tape horizontal.
- C leg kick Measure from the crotch to the bottom of the leg.
| Talla | Cintura (A) | Cadera (B) | Tiro (C) |
|---|---|---|---|
| XS | 68 - 74 | 80 - 85 | 81 |
| S | 75 - 82 | 86 - 93 | 81.5 |
| M | 83 - 90 | 94 - 100 | 82 |
| L | 91 - 97 | 101 - 108 | 82.5 |
| XL | 98 - 103 | 109 - 113 | 83 |
| XXL-3XL | 104 - 134 | 114 - 138 | 83.5 |
| Nota: medidas en centímetros (cm) | |||
| Talla | Cintura (A) | Cadera (B) | Tiro (C) |
|---|---|---|---|
| XS | 26.5 - 29 | 31.5 - 34 | 31.8 |
| S | 29.5 - 32 | 34.5 - 37 | 32 |
| M | 32.5 - 35 | 37.5 - 40 | 32.2 |
| L | 35.5 - 38 | 40.5 - 43 | 32.4 |
| XL | 38.5 - 41 | 43.5 - 45 | 32.6 |
| XXL-3XL | 41.5 - 53 | 45.5 - 54 | 32.8 |
| Nota: medidas en pulgadas (in) | |||
| Size | Lenght | ||
|---|---|---|---|
| 2C | 119 - 125 | ||
| 3C | 126 - 132 | ||
| 4C | 133 - 138 | ||
| 5C | 139 - 145 | ||
| 6C | 146 - 152 | ||
| 7C | 153 - 158 | ||
| 8C | 159 - 165 | ||
| 9C | 166 - 172 | ||
| 10C | 173 - 178 | ||
| 11C | 179 - 185 | ||
| 12C | 186 - 192 | ||
| 12.5C | 193 - 198 | ||
| 13C | 199 - 205 | ||
| 13.5C | 206 - 212 | ||
| 1Y | 212 - 213 | ||
| 1.5Y | 214 - 218 | ||
| 2 | 219 - 223 | ||
| 2.5 | 224 - 229 | ||
| 3 | 226 - 232 | ||
| 4 | 233 - 236 | ||
| 4.5 | 237 - 239 | ||
| 5 | 240 - 245 | ||
| 5.5 | 246 - 252 | ||
| 6 | 253 - 256 | ||
| 6.5 | 257 - 262 | ||
| 7 | 259 - 265 | ||
| 7.5 | 266 - 269 | ||
| 8 | 270 - 273 | ||
| 8.5 | 273 - 276 | ||
| 9 | 279 - 283 | ||
| 9.5 | 284 - 288 | ||
| 10 | 288 - 292 | ||
| 11 | 293 - 298 | ||
| 11.5 | 299 - 305 | ||
| 12 | 306 - 312 | ||
| 13 | 313 - 319 | ||
| 14 | 320 - 326 | ||
| Important: dimensions in milimetres (mm) | |||
| Size | Length | ||
|---|---|---|---|
| 2C | 4,68 - 4,92 | ||
| 3C | 4,93 - 5,19 | ||
| 4C | 5,20 - 5,43 | ||
| 5C | 5,44 - 5,71 | ||
| 6C | 5,72 - 5,98 | ||
| 7C | 5,99 - 6,22 | ||
| 8C | 6,23 - 6,49 | ||
| 9C | 6,50 - 6,77 | ||
| 10C | 6,78 - 7,00 | ||
| 11C | 7,01 - 7,28 | ||
| 12C | 7,29 - 7,55 | ||
| 12.5C | 7,56 - 7,79 | ||
| 13C | 7,80 - 8,07 | ||
| 13.5C | 8,19 - 8,34 | ||
| 1Y | 8,35 - 8,38 | ||
| 1.5Y | 8,36 - 8,58 | ||
| 2 | 8,59 - 8,77 | ||
| 2.5 | 8,78 - 9,01 | ||
| 3 | 8,89 - 9,13 | ||
| 3.5 | 9,14 - 9,29 | ||
| 4 | 9,30 - 9,40 | ||
| 5 | 9,41 - 9,64 | ||
| 5.5 | 9,65 - 9,92 | ||
| 6 | 9,93 - 10,07 | ||
| 6.5 | 10,08 - 10,31 | ||
| 7 | 10,19 - 10,43 | ||
| 7.5 | 10,44 - 10,59 | ||
| 8 | 10,60 - 10,74 | ||
| 8.5 | 10,74 - 10,86 | ||
| 9 | 10,98 - 11,14 | ||
| 9.5 | 11,15 - 11,33 | ||
| 10 | 11,33 - 11,49 | ||
| 11 | 11,50 - 11,73 | ||
| 11.5 | 11,74 - 12 | ||
| Important: dimensions in inches(in) | |||
- A Chest Measure around the narrowest part of your waist, keeping the tape horizontal
- B Waist Keeping both feet together, measure around the fullest part of your hips, keeping the tape horizontal
- C Hip Measure from the crotch to the bottom of the leg
| Talla | Pecho (A) | Cintura (B) | Cadera (C) |
|---|---|---|---|
| XS | 76 - 82 | 61 - 68 | 86 - 90 |
| S | 83 - 89 | 69 - 73 | 91 - 95 |
| M | 90 - 94 | 74 - 78 | 96 - 100 |
| L | 95 - 98 | 79 - 82 | 101 - 104 |
| XL | 99 - 102 | 83 - 86 | 105 - 108 |
| XXL-3XL | 103 - 106 | 87 - 90 | 109 - 112 |
| Nota: medidas en centímetros (cm) | |||
| Talla | Pecho (A) | Cintura (B) | Cadera (C) |
|---|---|---|---|
| XS | 30 - 32 | 24 - 26.5 | 33.5 - 35 |
| S | 32.5 - 35 | 27 - 28.5 | 35.5 - 37 |
| M | 35.5 - 37 | 29 - 30.5 | 37.5 - 39 |
| L | 37.5 - 38 | 31 - 32.5 | 39.5 - 41 |
| XL | 38.5 - 40 | 33 - 33.5 | 41.5 - 42.5 |
| XXL-3XL | 40.5 - 41.5 | 34 - 35.5 | 43 - 44 |
| Nota: medidas en pulgadas (in) | |||
- A Waist Measure around the narrowest part of your waist, keeping the tape horizontal.
- B Hip Keeping both feet together, measure around the fullest part of your hips, keeping the tape horizontal.
- C leg kick Measure from the crotch to the bottom of the leg.
| Talla | Cintura (A) | Cadera (B) | Tiro (C) |
|---|---|---|---|
| XS | 61 - 68 | 86 - 91 | 78 |
| S | 69 - 73 | 92 - 95 | 78.5 |
| M | 74 - 78 | 96 - 100 | 79 |
| L | 79 - 82 | 101 - 104 | 79.5 |
| XL | 83 - 86 | 105 - 108 | 80 |
| XXL-3XL | 87 - 90 | 109 - 112 | 80.5 |
| Nota: medidas en centímetros (cm) | |||
| Talla | Cintura (A) | Cadera (B) | Tiro (C) |
|---|---|---|---|
| XS | 24 - 26.5 | 33.5 - 35.5 | 30.7 |
| S | 27 - 28.5 | 36 - 37.5 | 30.9 |
| M | 29 - 30.5 | 38 - 39.5 | 31.1 |
| L | 31 - 32.4 | 40 - 41 | 31.3 |
| XL | 32.5 - 34 | 41.5 - 42.5 | 31.5 |
| XXL-3XL | 34.5 - 35.5 | 43 - 44 | 31.7 |
| Nota: medidas en pulgadas (in) | |||
| Size | Lenght | ||
|---|---|---|---|
| 2C | 119 - 125 | ||
| 3C | 126 - 132 | ||
| 4C | 133 - 138 | ||
| 5C | 139 - 145 | ||
| 6C | 146 - 152 | ||
| 7C | 153 - 158 | ||
| 8C | 159 - 165 | ||
| 9C | 166 - 172 | ||
| 10C | 173 - 178 | ||
| 11C | 179 - 185 | ||
| 12C | 186 - 192 | ||
| 12.5C | 193 - 198 | ||
| 13C | 199 - 205 | ||
| 13.5C | 206 - 212 | ||
| 1Y | 212 - 213 | ||
| 1.5Y | 214 - 218 | ||
| 2 | 219 - 223 | ||
| 2.5 | 224 - 229 | ||
| 3 | 226 - 232 | ||
| 4 | 233 - 236 | ||
| 4.5 | 237 - 239 | ||
| 5 | 240 - 245 | ||
| 5.5 | 246 - 252 | ||
| 6 | 253 - 256 | ||
| 6.5 | 257 - 262 | ||
| 7 | 259 - 265 | ||
| 7.5 | 266 - 269 | ||
| 8 | 270 - 273 | ||
| 8.5 | 273 - 276 | ||
| 9 | 279 - 283 | ||
| 9.5 | 284 - 288 | ||
| 10 | 288 - 292 | ||
| 11 | 293 - 298 | ||
| 11.5 | 299 - 305 | ||
| 12 | 306 - 312 | ||
| 13 | 313 - 319 | ||
| 14 | 320 - 326 | ||
| Important: dimensions in milimetres (mm) | |||
| Size | Length | ||
|---|---|---|---|
| 2C | 4,68 - 4,92 | ||
| 3C | 4,93 - 5,19 | ||
| 4C | 5,20 - 5,43 | ||
| 5C | 5,44 - 5,71 | ||
| 6C | 5,72 - 5,98 | ||
| 7C | 5,99 - 6,22 | ||
| 8C | 6,23 - 6,49 | ||
| 9C | 6,50 - 6,77 | ||
| 10C | 6,78 - 7,00 | ||
| 11C | 7,01 - 7,28 | ||
| 12C | 7,29 - 7,55 | ||
| 12.5C | 7,56 - 7,79 | ||
| 13C | 7,80 - 8,07 | ||
| 13.5C | 8,19 - 8,34 | ||
| 1Y | 8,35 - 8,38 | ||
| 1.5Y | 8,36 - 8,58 | ||
| 2 | 8,59 - 8,77 | ||
| 2.5 | 8,78 - 9,01 | ||
| 3 | 8,89 - 9,13 | ||
| 3.5 | 9,14 - 9,29 | ||
| 4 | 9,30 - 9,40 | ||
| 5 | 9,41 - 9,64 | ||
| 5.5 | 9,65 - 9,92 | ||
| 6 | 9,93 - 10,07 | ||
| 6.5 | 10,08 - 10,31 | ||
| 7 | 10,19 - 10,43 | ||
| 7.5 | 10,44 - 10,59 | ||
| 8 | 10,60 - 10,74 | ||
| 8.5 | 10,74 - 10,86 | ||
| 9 | 10,98 - 11,14 | ||
| 9.5 | 11,15 - 11,33 | ||
| 10 | 11,33 - 11,49 | ||
| 11 | 11,50 - 11,73 | ||
| 11.5 | 11,74 - 12 | ||
| Important: dimensions in inches(in) | |||
| Talla | Edad | Altura | Pecho | Cintura | Cadera | |
|---|---|---|---|---|---|---|
| 6XS | 4 - 5 | 100 - 108 | 55 - 57 | 54 - 55 | 60 - 62 | |
| 5XS | 5 - 6 | 109 - 117 | 58 - 61 | 56 - 57 | 63 - 65 | |
| 4XS | 7 - 8 | 118 - 128 | 62 - 66 | 58 - 60 | 66 - 68 | |
| 3XS | 9 - 10 | 129 - 140 | 67 - 72 | 61 - 64 | 69 - 74 | |
| 2XS | 11 - 12 | 141 - 152 | 73 - 79 | 65 - 68 | 75 - 80 | |
| XS | 12 - 14 | 153 - 164 | 80 - 87 | 69 - 72 | 81 - 86 | |
| Nota: medidas en centímetros (cm) | ||||||
| Talla | Edad | Altura | Pecho | Cintura | Cadera | |
|---|---|---|---|---|---|---|
| 6XS | 4 - 5 | 39 - 43 | 21.5 - 22.5 | 21 - 21.5 | 23.5 - 24.5 | |
| 5XS | 5 - 6 | 43.5 - 46 | 23 - 24 | 22 - 22.5 | 23.5 - 25 | |
| 4XS | 7 - 8 | 46.5 - 50 | 24.5 - 26 | 23 - 23.5 | 25.5 - 27 | |
| 3XS | 9 - 10 | 50.5 - 55 | 26.5 - 28.5 | 24 - 25 | 27.5 - 29 | |
| 2XS | 11 - 12 | 55.5 - 60 | 28.5 - 31 | 25.5 - 26 | 29.5 - 31 | |
| XS | 12 - 14 | 60.5 - 65 | 31.5 - 34 | 26.5 - 28 | 31.5 - 34 | |
| Nota: medidas en pulgadas (in) | ||||||
| Size | Lenght | ||
|---|---|---|---|
| 2C | 119 - 125 | ||
| 3C | 126 - 132 | ||
| 4C | 133 - 138 | ||
| 5C | 139 - 145 | ||
| 6C | 146 - 152 | ||
| 7C | 153 - 158 | ||
| 8C | 159 - 165 | ||
| 9C | 166 - 172 | ||
| 10C | 173 - 178 | ||
| 11C | 179 - 185 | ||
| 12C | 186 - 192 | ||
| 12.5C | 193 - 198 | ||
| 13C | 199 - 205 | ||
| 13.5C | 206 - 212 | ||
| 1Y | 212 - 213 | ||
| 1.5Y | 214 - 218 | ||
| 2 | 219 - 223 | ||
| 2.5 | 224 - 229 | ||
| 3 | 226 - 232 | ||
| 4 | 233 - 236 | ||
| 4.5 | 237 - 239 | ||
| 5 | 240 - 245 | ||
| 5.5 | 246 - 252 | ||
| 6 | 253 - 256 | ||
| 6.5 | 257 - 262 | ||
| 7 | 259 - 265 | ||
| 7.5 | 266 - 269 | ||
| 8 | 270 - 273 | ||
| 8.5 | 273 - 276 | ||
| 9 | 279 - 283 | ||
| 9.5 | 284 - 288 | ||
| 10 | 288 - 292 | ||
| 11 | 293 - 298 | ||
| 11.5 | 299 - 305 | ||
| 12 | 306 - 312 | ||
| 13 | 313 - 319 | ||
| 14 | 320 - 326 | ||
| Important: dimensions in milimetres (mm) | |||
| Size | Length | ||
|---|---|---|---|
| 2C | 4,68 - 4,92 | ||
| 3C | 4,93 - 5,19 | ||
| 4C | 5,20 - 5,43 | ||
| 5C | 5,44 - 5,71 | ||
| 6C | 5,72 - 5,98 | ||
| 7C | 5,99 - 6,22 | ||
| 8C | 6,23 - 6,49 | ||
| 9C | 6,50 - 6,77 | ||
| 10C | 6,78 - 7,00 | ||
| 11C | 7,01 - 7,28 | ||
| 12C | 7,29 - 7,55 | ||
| 12.5C | 7,56 - 7,79 | ||
| 13C | 7,80 - 8,07 | ||
| 13.5C | 8,19 - 8,34 | ||
| 1Y | 8,35 - 8,38 | ||
| 1.5Y | 8,36 - 8,58 | ||
| 2 | 8,59 - 8,77 | ||
| 2.5 | 8,78 - 9,01 | ||
| 3 | 8,89 - 9,13 | ||
| 3.5 | 9,14 - 9,29 | ||
| 4 | 9,30 - 9,40 | ||
| 5 | 9,41 - 9,64 | ||
| 5.5 | 9,65 - 9,92 | ||
| 6 | 9,93 - 10,07 | ||
| 6.5 | 10,08 - 10,31 | ||
| 7 | 10,19 - 10,43 | ||
| 7.5 | 10,44 - 10,59 | ||
| 8 | 10,60 - 10,74 | ||
| 8.5 | 10,74 - 10,86 | ||
| 9 | 10,98 - 11,14 | ||
| 9.5 | 11,15 - 11,33 | ||
| 10 | 11,33 - 11,49 | ||
| 11 | 11,50 - 11,73 | ||
| 11.5 | 11,74 - 12 | ||
| Important: dimensions in inches(in) | |||
| Size | Circumference | |||||
|---|---|---|---|---|---|---|
| 3 | 57-59 cm | |||||
| 2 | 54-56 cm | |||||
| 1 | 50-52 cm | |||||
| Important: dimensions in centimetres (cm) | ||||||
| Size | Circumference | |||||
|---|---|---|---|---|---|---|
| 5 | 68-70 | |||||
| 4 | 63,5-66,5 | |||||
| 3 | 58-60 | |||||
| 1 | 45-46 | |||||
| Important: dimensions in centimetres (cm) | ||||||
| Size | Circumference | |||||
|---|---|---|---|---|---|---|
| 62 | 62-64 cm | |||||
| 58 | 57-59 cm | |||||
| 1 | 45-46 cm | |||||
| Important: dimensions in centimetres (cm) | ||||||
| Size | Length | Perimeter | Circumference | Weight | ||
|---|---|---|---|---|---|---|
| 5 | 28 - 29 cm | 75 ± 1 cm | 59 ± 1 cm | 440 ± 10 gm | ||
| 4 | 27 ± 1 cm | 70 ± 1 cm | 56 ± 1 cm | 360 - 390 gm | ||
| 3 | 25 ± 1 cm | 66 ± 1 cm | 53 ± 1 cm | 300 - 340 gm | ||
| Important: dimensions in centimetres (cm) | ||||||
| Size | Circumference | Weight | ||||
|---|---|---|---|---|---|---|
| 5 | 65-67 cm | 260-280 gm | ||||
| Important: dimensions in centimetres (cm) | ||||||
| Size | Circumference | |||||
|---|---|---|---|---|---|---|
| 3 | 11.6 | |||||
| 4 | 13.6 | |||||
| 5 | 15.6 | |||||
| 6 | 17.6 | |||||
| 7 | 19.6 | |||||
| 8 | 21.6 | |||||
| 9 | 24.7 | |||||
| 10 | 26.7 | |||||
| 11 | 29.2 | |||||
| 12 | 31.8 | |||||
| To select the correct size, measure around the hand at the knuckle level, excluding the thumb. | ||||||
| Please allow a slight difference due to manual measurement. | ||||||
| Important: dimensions in centimetres (cm) | ||||||
| Size | Circumference | |||||
|---|---|---|---|---|---|---|
| 3 | 4.6 | |||||
| 4 | 5.4 | |||||
| 5 | 6.1 | |||||
| 6 | 6.9 | |||||
| 7 | 7.75 | |||||
| 8 | 8.5 | |||||
| 9 | 9.5 | |||||
| 10 | 10.5 | |||||
| 11 | 11.5 | |||||
| 12 | 12.5 | |||||
| To select the correct size, measure around the hand at the knuckle level, excluding the thumb. | ||||||
| Please allow a slight difference due to manual measurement. | ||||||
| Important: dimensions in inches(in) | ||||||
| Size | Circumference | |||||
|---|---|---|---|---|---|---|
| XXS | 50-52 | |||||
| M | 56-58 | |||||
| L | 58-60 | |||||
| To select the correct size, measure around the hand at the knuckle level, excluding the thumb. | ||||||
| Please allow a slight difference due to manual measurement. | ||||||
| Important: dimensions in centimetres (cm) | ||||||
| Size | Circumference | |||||
|---|---|---|---|---|---|---|
| XXS | 20.5 | |||||
| M | 22.5 | |||||
| L | 23 | |||||
| To select the correct size, measure around the hand at the knuckle level, excluding the thumb. | ||||||
| Please allow a slight difference due to manual measurement. | ||||||
| Important: dimensions in inches(in) | ||||||
Size UK
Please, select your size
Trail-running shoes Tr-6 26 man petroleum
Description
Trail running shoes. For long-distance and ultra-trail competitions, these shoes with a carbon plate provide propulsion and running efficiency. In addition, the TR-6 are designed for running on low-difficulty terrain, although their lugged structure ensures grip at all times.
Tested by professional athletes such as Gemma Arenas.
Upper completely renewed, made from very lightweight technical mesh and breathable thanks to the VTS ventilation system, which allows effective sweat expulsion and air circulation inside the shoes. It ensures the foot stays cool and comfortable.
Thermosealed fit system JOMA SPORTECH, which provides support without adding extra weight. Thermosealed PROTECTION reinforcement on the toe, which resists external impacts.
Midsole with an 8 mm drop, made from FLY REACTIVE. An ultrareactive and lightweight material that achieves excellent energy return to optimise performance, reduce fatigue and assist muscle recovery. In the TR-6 this compound is combined with a carbon plate, ideal for runners seeking maximum speed in competition. This special technology is more flexible and more stable so the trail runner can reach the desired performance without arriving at the finish with muscular fatigue.
Outsole with enhanced grip, developed with the new JOMA GRIP rubber. This compound optimises traction on irregular, stony and wet surfaces. It features a lug system specially designed to provide exceptional grip.
Characteristics
- Cut with lightweight mesh and breathability VTS
- SPORTECH design with heat-sealed adjustment system
- Midsole with FLY REACTIVE technology and CARBON PLATE
- Rubber sole
Technical Information
- 8 mm Drop
- 267 gr weight
- Fast pace: less than 4' per km
- Intensity of use: competition
- Distance: between 20 km to 30 km
- Distance: between 30 km to 50 km
- Terrain difficulty: medium
- Performance: high premium
Technical Scale
-
Cushioning
-
Comfort
-
Durability
-
Stability
-
Light-weight
-
Responsiveness
“With the TR-6 I can move fast and confidently even when the terrain gets tough. The new grip is really noticeable, I have more traction and confidence with every step.”
Julen Calvó, Transgrancanaria Advanced (81K) Champion 2026
Responsive traction
Superior grip on wet, muddy, or unstable surfaces. Maintains friction even in extreme conditions.
Adapts to the terrain
The compound conforms to micro-irregularities to deliver stability and precision with every step, even on technical rock.
Durable against wear
High resistance to abrasion and heat, maintaining performance even on dry, aggressive terrain.
We present our new next-generation rubber compound, designed to maximize trail performance in any condition. Its formulation optimizes the balance between grip, durability, and responsiveness, delivering effective ground contact even on wet, uneven, or highly abrasive surfaces. The result is more consistent traction, greater control with every step, and reliable performance throughout the entire run.
Three extreme terrains, three key outsole demands
1. Muddy clay ground
Deep grip and lug self-cleaning to prevent slipping even in saturated conditions.
2. Wet volcanic rock
Maximum adhesion and terrain adaptation to ensure precision and stability on critical footholds.
3. Hard-packed trail and abrasive rock
High wear resistance and stability at fast paces, maintaining performance under heat.
Trail-running shoes Tr-6 26 man petroleum
Size UK
Please, select your size
Size UK
Please, select your size
Select size
Size UK
Please, select your size
Fast home delivery
Durability
High-resistance rubber that delays wear due to abrasion.
Fly Reactive
It provides ultra-light cushioning in the midsole, necessary for long distances in competition or short intervals in training.
Joma Grip
Non-slip rubber that provides maximum grip and traction on uneven or wet surfaces. Improves stability and allows confident movement on trails, rocks, or technical terrain.
Protection
Injected material that increases resistance and durability in the toe area.
Sportech
Injected rubber that prevents seams and other rigid materials on the upper part of the shoe. Providing lightness, comfort, greater flexibility and better fit to the foot. The thickness varies according to the protection and resistance needs of each area.
VTS
Ventilation system that allows air to enter, promotes perspiration, maintains a constant temperature, preventing the foot from overheating.