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Running shoes made easy! Made for kids who love to play all day, the Nike Flex Runner 3 pairs a stretchy bootie design with a flexible outsole and grippy traction. No laces mean they're super quick to slip on and off. So, who's ready to race?
A stretchy bootie design provides a snug fit while ensuring these are easy to slip on and off.
Real and synthetic leather overlays work with a heel strap to help provide support and durability.
Foam wraps around the heel to help provide stability when you quickly shift direction. To keep the foam outsole flexible, we added flex grooves throughout, helping every step feel natural. Multiple tread patterns help provide durable multi-surface traction.
| 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 β 88β³ | 65 β 73β³ | 80 β 88β³ | 170 β 183 |
| S | 88 β 96β³ | 73 β 81β³ | 88 β 96β³ | 170 β 183 |
| M | 37 β 40β³ | 81 - 89β³ | 96 - 104β³ | 170 β 183 |
| L | 40 β 44β³ | 89 - 97β³ | 104 - 112β³ | 170 β 183 |
| XL | 44 β 48β³ | 97 - 109β³ | 112 - 120β³ | 170 β 183 |
| 2XL | 48 β 52β³ | 109 - 121β³ | 120 - 128β³ | 170 β 183 |
| Size | BUST | WAIST | HIP |
|---|---|---|---|
| XXS | 70 - 76β³ | 54 - 60β³ | 78 - 84β³ |
| XS | 76 - 83β³ | 60 - 67β³ | 84 - 91β³ |
| S | 83 - 90β³ | 67 - 74β³ | 91 -98β³ |
| M | 90 - 97β³ | 74 β 81β³ | 98 β 105β³ |
| L | 97 β 104β³ | 81 β 88β³ | 105 β 112β³ |
| XL | 104 β 114β³ | 88 β 98β³ | 112 β 120β³ |
| 2XL | 114 β 124β³ | 98 β 108β³ | 120 β 128β³ |
| 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 | 29β32 | 35β37.5 | 32.25 | 34.25 | 30.25 |
| M | 32β35 | 37.5β41 | 32.5 | 34.5 | 30.5 |
| L | 35β38 | 41β44 | 32.75 | 34.75 | 30.75 |
| XL | 38β43 | 44β47 | 33 | 35 | 31 |
| XXL | 43β47.5 | 47β50.5 | 33.25 | 35.25 | 31.25 |
| XXXL | 47.5β52.5 | 50.5β53.5 | 33.5 | 35.5 | 31.5 |
| XS | 0β2 | 23.5β26 | 33β35.5 | 31.2 | 33.25 | 29.25 |
|---|---|---|---|---|---|---|
| S | 4β6 | 26β29 | 35.5β38.5 | 31.2 | 33.25 | 29.25 |
| M | 8β10 | 29β31.5 | 38.5β41 | 31.5 | 33.5 | 29.5 |
| L | 12β14 | 31.5β34.5 | 41β44 | 31.5 | 33.5 | 29.5 |
| XL | 16β18 | 34.5β38.5 | 44β47 | 31.75 | 33.75 | 29.75 |
| XXL | 20β22 | 38.5β42.5 | 47β50 | 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 |

