The MITTON Pelvic Support Belt™ should be used for standing and walking. When sitting or reclining for a period of time, undo the belt. Do not wear in bed at night. The belt should be firm, but not too tight. Wear over your lower clothes and under your top (long) so that it can be undone when sitting. This belt contains Latex. Not suitable for any person with a Latex allergy. Contact us with any questions.