How to measure your IPHIS size:
If you like to wear your underwear lower, please measure your waist underneath your belly button as shown above. This will give you your IPHIS size.
If you like to wear your underwear higher, please measure your waist size at the top of your belly button. This will give you your IPHIS size.
| HIGHER WAIST | LOWER WAIST | WAIST |
| XXS | XXXS | 23/24" |
| XS | XXS | 25/26" |
| S | XS | 27/28" |
| M | S | 29/30" |
| L | M | 31/32" |
| XL | L | 33/34" |
| 2X | XL | 35/36" |
| 3X | 2X | 37/38" |