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Meet the shoe built for kids who treat the world like their racetrack. Loaded with stable cushioning and durable features, the Nike Cosmic Runner helps support your little one's every stride. Elastic laces and a hook-and-loop strap let them get ready fast.
Lightweight mesh in the upper helps keep little feet cool. We reinforced the toes, sides and heels for added durability.
Springy foam helps cushion kids' every stride, giving them the soft and supportive feel they need to go the distance.
The durable two-part rubber outsole helps give kids the grip they need to confidently run on multiple surfaces.
| US | EUR | UK | JPN (cm) |
|---|---|---|---|
| 7.5 | 40.5 | 6.5 | 25.5 |
| 8 | 41 | 7 | 26 |
| 8.5 | 42 | 7.5 | 26.5 |
| 9 | 42.5 | 8 | 27 |
| 9.5 | 43 | 8.5 | 27.5 |
| 10 | 44 | 9 | 28 |
| 10.5 | 44.5 | 9.5 | 28.5 |
| 11 | 45 | 10 | 29 |
| 11.5 | 45.5 | 10.5 | 29.5 |
| 12 | 46 | 11 | 30 |
| 13 | 47.5 | 12 | 31 |
| 14 | 48.5 | 13 | 32 |
| 15 | 49.5 | 14 | 33 |
| CM | US |
| 13.3 cm | 6C |
| 14.2 cm | 7C |
| 15 cm | 8C |
| 15.9 cm | 9C |
| 16.7 cm | 10C |
| 17.6 cm | 11C |
| 18.4 cm | 12C |
| 19.3 cm | 13C |
| 20.1 cm | 1Y |
| 20.8 cm | 2Y |
| 21.6 | 3y |
| US | EUR | UK | JPN (cm) |
| 5 | 35.5 | 2.5 | 22 |
| 5.5 | 36 | 3 | 22.5 |
| 6 | 36.5 | 3.5 | 23 |
| 6.5 | 37.5 | 4 | 23.5 |
| 7 | 38 | 4.5 | 24 |
| 7.5 | 38.5 | 5 | 24.5 |
| 8 | 39 | 5.5 | 25 |
| 8.5 | 40 | 6 | 25.5 |
| 9 | 40.5 | 6.5 | 26 |
| 9.5 | 41 | 7 | 26.5 |
| 10 | 42 | 7.5 | 27 |
| Size | CHEST (cm) | WAIST (cm) | HIP (cm) | Height (cm) |
|---|---|---|---|---|
| XS | 80 โ 88โณ | 65 โ 73โณ | 80 โ 88โณ | 170 โ 183 |
| S | 88 โ 96โณ | 73 โ 81โณ | 88 โ 96โณ | 170 โ 183 |
| M | 37 โ 40โณ | 81 - 89โณ | 96 - 104โณ | 170 โ 183 |
| L | 40 โ 44โณ | 89 - 97โณ | 104 - 112โณ | 170 โ 183 |
| XL | 44 โ 48โณ | 97 - 109โณ | 112 - 120โณ | 170 โ 183 |
| 2XL | 48 โ 52โณ | 109 - 121โณ | 120 - 128โณ | 170 โ 183 |
| Size | BUST | WAIST | HIP |
|---|---|---|---|
| XXS | 70 - 76โณ | 54 - 60โณ | 78 - 84โณ |
| XS | 76 - 83โณ | 60 - 67โณ | 84 - 91โณ |
| S | 83 - 90โณ | 67 - 74โณ | 91 -98โณ |
| M | 90 - 97โณ | 74 โ 81โณ | 98 โ 105โณ |
| L | 97 โ 104โณ | 81 โ 88โณ | 105 โ 112โณ |
| XL | 104 โ 114โณ | 88 โ 98โณ | 112 โ 120โณ |
| 2XL | 114 โ 124โณ | 98 โ 108โณ | 120 โ 128โณ |
| Size | Numeric Size | Age | Height (cm) | Chest (cm) | Waist (cm) | Hip (cm) |
|---|---|---|---|---|---|---|
| XS | 6 - 7 | 7 - 8 | 122 - 128 | 64.5 - 66 | 59.5 - 61.5 | 68.5 - 71 |
| S | 8 - 9 | 8 - 10 | 128 - 137 | 66 - 69 | 61.5 - 65 | 71 - 74.5 |
| M | 10 - 12 | 10 - 12 | 137 - 147 | 69 - 75 | 65 - 69 | 74.5 - 79.5 |
| L | 14 - 16 | 12 - 13 | 147 - 158 | 75 - 81.5 | 69 - 72.5 | 79.5 - 84.5 |
| XL | 18 - 20 | 13 - 15 | 158 - 170 | 81.5 - 88.5 | 72.5 - 75.5 | 84.5 - 89.5 |
| XS | < 29 | < 35 | 32 | 34 | 30 |
|---|---|---|---|---|---|
| S | 29โ32 | 35โ37.5 | 32.25 | 34.25 | 30.25 |
| M | 32โ35 | 37.5โ41 | 32.5 | 34.5 | 30.5 |
| L | 35โ38 | 41โ44 | 32.75 | 34.75 | 30.75 |
| XL | 38โ43 | 44โ47 | 33 | 35 | 31 |
| XXL | 43โ47.5 | 47โ50.5 | 33.25 | 35.25 | 31.25 |
| XXXL | 47.5โ52.5 | 50.5โ53.5 | 33.5 | 35.5 | 31.5 |
| XS | 0โ2 | 23.5โ26 | 33โ35.5 | 31.2 | 33.25 | 29.25 |
|---|---|---|---|---|---|---|
| S | 4โ6 | 26โ29 | 35.5โ38.5 | 31.2 | 33.25 | 29.25 |
| M | 8โ10 | 29โ31.5 | 38.5โ41 | 31.5 | 33.5 | 29.5 |
| L | 12โ14 | 31.5โ34.5 | 41โ44 | 31.5 | 33.5 | 29.5 |
| XL | 16โ18 | 34.5โ38.5 | 44โ47 | 31.75 | 33.75 | 29.75 |
| XXL | 20โ22 | 38.5โ42.5 | 47โ50 | 31.75 | 33.75 | 29.75 |
| SIZE | 30 | 32 | 34 | 36 | 38 |
| A | XS | XS | S | M | L |
| B | |||||
| C | S | ||||
| D | M | L | XL | ||
| DD | |||||
| E |

