SI belts and maternity belts help support the SI (sacroiliac) Joint. They can help relieve pain, help keep you in alignment, and help keep you pain free while strengthening the muscles around the SI joint.
SI Belts can also be helpful if you are pregnant. In that case, they are usually referred to as Maternity Belts or Maternity Belly Bands.
You can wear an SI Belt or Maternity Belt over or under your clothes. Find the top of your pelvic or hip bones (iliac crest), and the pubic bone. You want the belt to be somewhere in between the two. It slow needs to be where the sacrum is at the back to help support that SI joint. Make sure it’s snug, but not too tight.