When you're purchasing a body-chain or belly-chain we must receive your waist measurements to continue your order.
You can measure your waist in seconds, all you need is a measuring tape. Make sure you are using the inches side of the tape. Start at the top of your hip bone, then bring the tape measure all the way around, level with your belly button. Make sure it's not too tight and that it's straight. Don't hold your breath while measuring.