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Size guide
| LENGTH | WIDTH | |
| S (inches) | 21 | 17 |
| M (inches) | 23 | 18 |
| L (inches) | 25 | 19 |
| XL (inches) | 27 | 20 |
| LENGTH | WIDTH | |
| S (cm) | 53.3 | 43.2 |
| M (cm) | 58.4 | 45.7 |
| L (cm) | 63.5 | 48.3 |
| XL (cm) | 68.6 | 50.8 |