Meet your workout’s new best friend. With a made-for-you fit, plant-based knit, and impact-ready reinforcements, these fitness-focused trainers take your gym sessions to the next level without sacrificing style, comfort, or sustainability.
The HIIT Trainer fits true-to-size.
Size guide
| US (W) | US (M) | UK | EU | CM |
| 5 | — | 3.5 | 36 | 22 |
| 5.5 | — | 4 | 36.7 | 22.5 |
| 6 | — | 4.5 | 37.3 | 23 |
| 6.5 | — | 5 | 38 | 23.5 |
| 7 | — | 5.5 | 38.7 | 24 |
| 7.5 | — | 6 | 39.3 | 24.5 |
| 8 | 7 | 6.5 | 40 | 25 |
| 8.5 | 7.5 | 7 | 40.7 | 25.5 |
| 9 | 8 | 7.5 | 41.3 | 26 |
| 9.5 | 8.5 | 8 | 42 | 26.5 |
| 10 | 9 | 8.5 | 42.7 | 27 |
| — | 9.5 | 9 | 43.3 | 27.5 |
| — | 10 | 9.5 | 44 | 28 |
| — | 10.5 | 10 | 44.7 | 28.5 |
| — | 11 | 10.5 | 45.3 | 29 |
| — | 11.5 | 11 | 46 | 29.5 |
| — | 12 | 11.5 | 46.7 | 30 |
| — | 13 | 12.5 | 48 | 3 |