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Sizing: Headgear
| Small (S) | Small/Medium (S/M) | Medium (M) | Large (L) | Large/X-Large (L/XL) | X-Large (XL) | |
| inch (circum.) | 20.875" - 21.625" | 19" - 22.5" | 22" - 22.75" | 23.25" - 24" | 21" - 25" | 24.375" - 25.25" |
| cm (circum.) | 53 cm - 55 cm | 48 cm - 57 cm | 56 cm - 58 cm | 59 cm - 61 cm | 53 cm - 63 cm | 62 cm - 64 cm |
| US Size | 6 5/8 - 6 7/8 | 6 - 7 1/8 | 7 - 7 1/4 | 7 3/8 - 7 5/8 | 6 5/8 - 7 3/4 | 7 3/4 - 8 |
| Boxer's Weight | Up to 132 lb (Up to 60 kg) |
Up to 165 lb (Up to 75 kg) |
135-165 lb (61-75 kg) |
165-190 lb (75-86 kg) |
165 lb & over (75 kg & over) |
190 lb & over (86 kg & over) |