FINIS SlipFin Pro
How to measure
- Wrap a soft tape around the top of your foot, just in front of your ankle.
- Keep the tape flat and snug without compressing your foot.
- Match your measurement to the chart.
No tape? Use a shoelace or string, then measure it against a ruler.
| Size | Instep Circumference |
|---|---|
| Small (S) | 21–24.5 cm |
| Medium (M) | 23.5–27 cm |
| Large (L) | 26–28+ cm |
Between sizes? Size down for a snug performance fit; size up for a more relaxed comfort fit.
