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Fine-tuned for marathon speed, the Alphafly 3 helps push you beyond what you thought possible. Three innovative technologies power your run: A double dose of Air Zoom units helps launch you into your next step; a full-length carbon fiber plate helps propel you forward with ease; and a heel-to-toe ZoomX foam midsole helps keep you fresh from start to 26.2. Time to leave your old personal records in the dust.
Energy Return for Your Marathon
Two forefoot Air Zoom units combine with ZoomX foam to store and return the energy back to you, powering every step.
Full-Length Carbon Fiber Plate
A slightly wider carbon fiber Flyplate gives you a propulsive and stable feel with each step and turn.
Cushioned Ride
Fully connected ZoomX foam creates an ultralight and cushioned feel, helping you stay fresh and comfortable from mile 1 to 26.2.
Atomknit Upper
The Atomknit upper offers lightweight containment and breathability.
Lightest Alphafly yet
Wider carbon fiber plate for increased stability
Improved multidirectional containment and breathability
Fully connected ZoomX foam midsole for smoother transitions
Notched laces offer a secure but soft lace-up
Integrated knit tongue with lofted padding helps alleviate lace pressure
More Details
| 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 |

