The waist measurement should be taken at the navel (belly button) and please measure tightly. This will need to be provided in inches (you can be a little out but if you lose lots or put on lots of weight call the Kilt hire again to see if the size is still ok)
Your Kilt will actually go over your belly button (thats why its SUPER comfy to wear) so make sure you measure that part.
Please put your feet together, then measure the broadest part of your hips.
The easiest way to get an accurate measurement is to kneel on the ground, place the tape on the floor then measure up to your belly button. Please don't look down - this will alter the measurement. If you do not want to kneel you can use the image on the right to show you were to measure on your knee.
If you are still unsure Here is a video of how to measure. if you are still unsure please let me know and I can give you a hand.