The new SFX 4 has never worn its name so well: Superior Fit eXperience. Every detail is designed to make this model the benchmark for tennis shoes in terms of fit and performance.
With its wide fit and heel extension, it offers particularly plush comfort while ensuring stability on every step.
Featuring a lightweight and ventilated upper, whether during training or in long matches, it will revolutionize your tennis experience.
Mens
| Size (in centimeters) | 24,5 | 25 | 25,5 | 26 | 26,5 | 27 | 27,5 | 28 | 28,5 | 29 | 29,5 | 30 | 30,5 | 31 | 32 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size (in inches) | 9,8 | 10,0 | 10,2 | 10,5 | 10,7 | 10,9 | 11,1 | 11,3 | 11,5 | 11,7 | 11,9 | 12,1 | 12,3 | 12,5 | 12,9 |
| UK | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13.5 |
| EU | 39 | 40 | 40.5 | 41 | 42 | 42.5 | 43 | 44 | 44.5 | 45 | 46 | 46.5 | 47 | 48 | 49 |
| USA | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 |
| Japan | 24.5 | 25 | 25.5 | 26 | 26.5 | 27 | 27.5 | 28 | 28.5 | 29 | 29.5 | 30 | 30.5 | 31 | 32 |
Womens
| Size (in centimeters) | 22,5 | 23 | 23,5 | 24 | 24,5 | 25 | 25,5 | 26 | 26,5 | 27 | 27,5 | 27,5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size (in inches) | 9,04 | 9,24 | 9,45 | 9,65 | 9,85 | 10,05 | 10,25 | 10,45 | 10,65 | 10,85 | 11,05 | 11,05 |
| UK | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 |
| EU | 36 | 36.5 | 37 | 38 | 38.5 | 39 | 40 | 40.5 | 41 | 42 | 42.5 | 43 |
| USA | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 |
| Japan | 22 | 22.5 | 23 | 23.5 | 24 | 24.5 | 25 | 25.5 | 26 | 26.5 | 27 | 27.5 |
Juniors
| Size (in centimeters) | 19 | 19,5 | 20 | 20,5 | 21 | 21,5 | 22 | 22,5 | 23 | 23,5 | 24 | 24,5 | 25 | 25,5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size (in inches) | 7,64 | 7,84 | 8,04 | 8,24 | 8,44 | 8,64 | 8,84 | 9,04 | 9,24 | 9,45 | 9,65 | 9,85 | 10,05 | 10,25 |
| UK | 13 | 13.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 |
| EU | 31 | 32 | 33 | 33.5 | 34 | 35 | 35.5 | 36 | 36.5 | 37 | 38 | 38.5 | 39 | 40 |
| USA | 13.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 |
| Japan | 18.5 | 19 | 19.5 | 20 | 20.5 | 21 | 21.5 | 22 | 22.5 | 23 | 23.5 | 24 | 24.5 | 25 |
Kids
| Size (in centimeters) | 17 | 17,5 | 18 | 18,5 | 19 | 19,5 | 20 | 21 |
|---|---|---|---|---|---|---|---|---|
| Size (in inches) | 6,83 | 7,03 | 7,23 | 7,44 | 7,64 | 7,84 | 8,04 | 8,44 |
| UK | 9 | 10 | 11 | 12 | 13 | 13.5 | 1 | 2 |
| EU | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 |
| USA | 9.5 | 10.5 | 11.5 | 12.5 | 13.5 | 1 | 1.5 | 2.5 |
| Japan | 16.5 | 17 | 17.5 | 18 | 18.5 | 19 | 19.5 | 20.5 |
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