The first thing you should do is to know your waist (men) or hip (women) size, this will give an idea of the size of the lumbar brace you need. With a tape measure take this measurement and follow the indications given in the manual to know where you should measure. To know the model and size of the lumbar support, consult the table with all the available measurements that we have left above.
It is advisable to stand to take accurate measurements, avoid doing it after eating or when you feel full, that alters the measurement. Remember that if you feel a tingling in the lower back, then the back support is too tight, so having the accurate measurement will be essential to get the result you are looking for.