To make sure you order the correct size please measure your waist starting midway at your belly button and around your hips.
Manufacturer sizing is incorrect for the United States and runs very small. You will have to order by the inches around your waist. These garments are made to go tighter and compress your body.
Correct United States Sizes
X-small - 24 inchesSmall - 26 inches
Medium - 28 inchesLarge - 30 inches
X-large - 32 inches
XX Large - 34 inches