| INT. Size | Suitable for Waist | US/CA Size | Asia Size |
| XS | 66-71 cm / 26-28″ | 4 | S |
| S | 71-76 cm / 28-30″ | 6 | M |
| M | 76-81 cm / 30-32″ | 8 | L |
| L | 81-86 cm / 32-34″ | 10 | XL |
| XL | 86-91 cm / 34-36″ | 12 | 2XL |
| 2XL | 91-96 cm / 36-38″ | 14 | 3XL |
| 3XL | 96-101 cm / 38-40″ | 16 | 4XL |
| 4XL | 101-106 cm / 40-42″ | 18 | 5XL |
| 5XL | 106-111 cm / 42-44″ | 20 | 6XL |
Free size of underwear applies to Small, Medium, and Large