Seac F1 fin sizing. Imperial in bold, metric underneath.
| Size | EU size | Foot length (A) in · cm |
Weight lb · g |
Fin length (B) in · cm |
|---|---|---|---|---|
| XS/S | 36/38 |
8.6–9.5 22–24 |
1.66 753 |
24.01 61 |
| S/M | 39/41 |
9.5–10.2 24–26 |
1.74 789 |
24.01 61 |
| M/L | 42/43 |
10.2–11 26–28 |
1.80 815 |
25.19 64 |
| L/XL | 45/47 |
11.4–12.2 29–31 |
2.11 955 |
26.37 67 |
From Seac’s chart: * The indicated weight refers to a single fin
Source: Seac’s size chart (original chart).