Sizing Chart
The below sizing carts are for Gumbies Islander Flip Flops. These guides may differ from other brands and are only intended to be used for Gumbies products.
Children's Chart
| EU Size | 28 | 29 | 30 | 31 | 32 | 33 | 34 |
| UK Size | 10 | 11 | 12 | 13 | 13.5 | 1 | 2 |
| US Boys | 11 | 12 | 13 | 1 | 1.5 | 2 | 3 |
| US Girls | 12 | 13 | 1 | 2 | 2.5 | 3 | 4 |
| Length (MM) | 196 | 200 | 209 | 214 | 220 | 226 | 231 |
Ladies Sizing Chart
| EU Size | 36 | 37 | 38 | 39 | 40 | 41 | 42 |
| UK Size | 3 | 4 | 5 | 6 | 6.5 | 7 | 8 |
| US Men's | 4 | 5 | 6 | 7 | 7.5 | 8 | 9 |
| US Women's | 5 | 6 | 7 | 8 | 8.5 | 9 | 10 |
| Length (MM) | 239 | 245 | 250 | 258 | 266 | 274 | 281 |
Men's Sizing Chart
| EU Size | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 |
| UK Size | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| US Mens's | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| US Women's | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Length (MM) | 274 | 281 | 287 | 291 | 299 | 304 | 313 | 317 |