Unisex Speedo T-Shirts Size Guide 2024
| Unisex Size | Underarm to Underarm |
| XXXS (Jnr 12) | 42.5cm |
| XXS (Jnr 14) | 45cm |
| XS | 50cm |
| S | 52.5cm |
| M | 55cm |
| L | 57.5cm |
| XL | 60cm |
| XXL | 62.5cm |
| Unisex Size | Underarm to Underarm |
| XXXS (Jnr 12) | 42.5cm |
| XXS (Jnr 14) | 45cm |
| XS | 50cm |
| S | 52.5cm |
| M | 55cm |
| L | 57.5cm |
| XL | 60cm |
| XXL | 62.5cm |