Size Charts for Seirus Gloves
Men's
| US Size | Hand Length (inches) | Knuckle Circumference (inches) |
| Small | 8 3/8 | 8 1/8 |
| Medium | 8 3/8 | 8 3/8 |
| Large | 8 1/2 | 8 3/4 |
| X-Large | 9 | 8 3/4 |
Women's
| US Size | Hand Length (inches) | Knuckle Circumference (inches) |
| Small | 7 7/8 | 7 1/8 |
| Medium | 7 7/8 | 7 3/8 |
| Large | 7 7/8 | 8 3/8 |