Sacroiliac SI Joint Compression Brace for Coccyx Tailbone Pain Relief

This sacroiliac (SI) joint belt supports the low-back and compresses your abdomen. This combination stabilizes the lumbar spine and reduces pressure on the lower back, relieving pain stemming from sacroiliac joint (SIJ) dysfunction, a bruised tailbone (also known as the coccyx or butt bone) or the sciatic nerve, as just a few examples. A pulley system makes it incredibly easy to cinch up the sacral belt and its mesh construction gives it a cool, low-profile fit. 

Detailed Description

Trochanter Belt for SI Joint Dysfunction, Sciatica and Coccyx Pain Relief

This versatile hip support belt stabilizes and reduces the motion of the lower back, helping with pelvic alignment and protecting against more damage. Plus it compresses the abdomen, creating pressure that reduces the amount of force on lumbosacral spine, which is otherwise known as the small of the back.

These qualities make the orthopedic device great for treating many conditions that cause low-back pain, including:

A mechanical pulley system makes it easy to activate the brace’s compression feature. It multiplies your force by five, so you can easily generate a lot of compression that’s great for SI joint pain treatment with very little effort. In fact, it takes just one hand to make the smooth pull that cinches up this tailbone-stabilizing brace.

The pulley system sets the belt apart from other products like the SI LOC belt or the new Serola sacroiliac belt where the amount of compression you can apply depends on how tightly you can wrap the belt around your hips. And while the Breg BOA SI belt comes with a pulley system, our SI brace comes at a far more attractive price.

Velcro all the way around the lumbar/sacral support makes putting on and adjusting the belt simple. All it takes to loosen or tighten the belt as you move from a seated to standing position is a simple pull of the tab.  

Customizable SI Joint Brace

The pubic stabilization belt is one size fits all, which eliminates the hassle of measuring and trying to select the correct size. These universal braces fit hip circumferences ranging from 23 inches to 50 inches. If you are on the smaller side of that spectrum, you can trim off some of the extra material for a custom fit.

Two pads come with the belt for an extra layer of support and compression—if you want it. You can position them anywhere you want by sliding them along the belt.

If your goal is sacroiliac joint pain management, you should probably put a pad just off to the side of the spine. Or if you’re hoping to relieve coccyx (tailbone) pain, you might put one pad over the base of the spine. Or if pregnancy is giving you SPD, you may want a pad or two at the front area of the hip. You get the picture…

Flexible, Breathable Trochanteric Belt Is Great for Athletic Use

You can also remove both pads for a more flexible, streamlined fit that’s great for exercise, physical therapy and athletics. Doing so is as simple as sliding the pad accessories off the sciatic brace.

Another feature that makes this a great sports brace is its material. Outside of the pulley system, and the Velcro closure, the remainder of the lumbar wrap is a mesh material that’s flexible, super lightweight and about as breathable as fabrics come.  

The edge of this tailbone pain reliever belt is finished, so it won’t irritate your skin when you’re walking, biking or otherwise on the move. 

Treatment for SI Joint Pain

One of the primary uses of this medical tool is to relieve SI joint pain.  Men and women have two of these joints in the lower back where the spine and pelvis meet up.

Arthritis or instability of these joints can irritate them, leading to inflammation that causes pain in the lower back on either side of the spine where the joints are located. This pain may also radiate down the legs.

Sacroiliac joint dysfunction is also a common cause of low-back pain during pregnancy, as changes in weight, posture, and hormones can make the joints too mobile for their own good. (This is just one of many sources of pain during pregnancy.)

Wearing a sacroiliac band is a quick, at-home remedy for pain in the SI joints.

Unlike some braces you might find at Walgreens, this SI belt is specifically designed to stabilize and reduce pressure on the joints and tissues of the lower-back, similar to spinal traction procedures that can be pretty spendy.  Also, you can likely buy this gadget at a lower cost than a prescription sacral belt.

You can also wear this garment while or after you’re pregnant can also help stabilize the overly mobile SI joints and pelvic area, so long as you don’t measure more than 50 inches around the widest part of your hips. 

And if you do, don’t worry. We also offer pregnancy abdominal supports for SI joint pain. These belts have the added benefit of supporting the weight of your growing belly.

Treat an Inflamed or Bruised Tailbone

Trauma to the tailbone can bruise and inflame the area around the bone, causing an aching pain that worsens when you put weight on it. Officially, this tailbone injury is known as coccydynia.

Too much or too little movement of the tailbone can create painful alignment issues and tension in the pelvic floor muscles. Hormone changes during pregnancy are another possible culprit for a loosey-goosey tailbone. Plus a baby’s head pushes directly on the tailbone during childbirth, which can injure or even fracture the tail bone.

And sometimes, there is simply no identifiable cause for the problems with the tailbone.

Whatever the case may be, non-surgical treatment of an achy tailbone is effective for 90% of people… and many of these remedies can be done from the comfort of your home.

Some common first steps for tailbone pain relief include:

  • Applying a cold pack
  • Using heat to ease muscle tension (after a few days have passed)
  • Modifying your activity to reduce pressure on the tailbone (use a stand-up desk and try a pillow for the back and a donut-shaped one for the bottom)
  • Wearing a supportive low-back strap that reduces pressure on the tailbone

Physical therapy or manipulation of the muscles attached to the tailbone (by a doctor) might help if these initial steps fail to relieve your symptoms. Surgery to remove the tailbone is a last-resort that is rarely used.

Brace Can Protect the Back and Slow Degenerative Problems

Sadly, our spines are not immune to the toll of aging. As we get older the cushiony cartilage of the spine wears down and its bones become more brittle. And being obese or overweight can speed up this degeneration.

These and other age-related changes can lead to problems like:

  • a herniated disc
  • compression fracture of the vertebrae
  • narrowing of the open spaces of the spine (stenosis)
  • arthritis of the lower back
  • sciatica

While many of these conditions cannot be “cured” without surgery, there are some non-invasive steps you can take to slow their progression and treat pain.

One of the major steps in treating all of these degenerative injuries is stabilizing and reducing pressure on the spine so further damage does not occur. One of the best and simplest methods of doing so is to wear a short, fitted back belt for pain, like this one.  

The abdominal compression such devices create transfers some of the load away from the lumbar spine, easing pain, protecting against additional damage and sometimes even allowing healing to take place.

You can also adjust the placement of the two pads that come along with this belt for targeted support and compression. Or if you’re an athlete in need of a sleeker fit, you can remove the pads altogether.

Belt for Extra Support after Surgery

If you do find yourself going the surgical route for repairing problems with your lumbar spine, you might also find this to be a great post-surgery brace for an extra layer of support and stability as you go through rehabilitation and get back to day-to-day life.

And after surgery, you will especially appreciate its smooth pulley system and simple Velcro closures. But don’t take our word for it… check out the reviews of happy customers.

FAQs on Sacroiliac Belt

  • What conditions / injuries does this belt treat? It can help with many injuries to the lower back, including (but not limited to) a bruised, inflamed or broken tailbone, sacroiliac joint dysfunction, sciatica, symphysis pubis dysfunction (SPD), spinal compression fractures, arthritis of the lumbar spine and other conditions that might make the low back or pelvis unstable or painful.  
  • How does it work?  The belt supports the lower back, which in and of itself is helpful. And its patented pulley system allows you to compress the abdomen, which creates intracavitary pressure that transfers stress away from the spine. This also stabilizes the lower-back, which is great for conditions like SPD and SI joint pain where too much movement creates alignment issues and pain. The belt also comes with two moveable and removable pads that apply targeted compression to particularly sore areas. This can boost blood flow and speed healing.
  • When should I wear it? You should always follow a doctor’s instructions regarding usage. But generally speaking, you can safely wear this belt whenever you need extra support and/or pain relief.  
  • What is it made of? The belt is made of a breathable, nylon mesh material that is lightweight but durable. Its edges are finished and a layer of Velcro goes around it so you can attach the pull-tab wherever it suits you. The pulley tab system is composed of a high-quality plastic material with triple-woven nylon strings (parachute cord). The compression pads are covered in the airy mesh material.
  • Who can wear this brace?Males and females of all ages can benefit from this belt, so long as the circumference of their hips falls within a range of 23 inches to 50 inches. A pregnant woman can even wear this support so long as her belly does not take her past the size limit. We also offer maternity support belts and postpartum binders.
  • What size of belt should I buy? That’s an easy one with this universal brace… one size fits most. Just make sure that the area around your hips falls within the 23 to 50-inch sizing range. To check, wrap a soft, flexible tape measure around the hips at the widest part of your buttocks. If your hips are on the narrower end of the spectrum, you can trim off some of the excess material of the belt for a more streamlined fit. If your hips are wider than 50 inches, you should check out a plus-size belt.
  • How do I put it on?

To begin, fasten the handle of the pulley system on the left side of the belt near the pulley unit and slide the compression pad(s) to the area you need extra support.

While standing, wrap the belt around your hips and center the back pulley panel along the spine just above the tailbone.

Wrap the left side panel around to the front, then wrap the right side panel over the top of it and press the Velcro closure together to close the belt. If needed, tweak the position of the pad(s).

Pull the handle out and away from the pulley unit until you’ve reached your desired level of compression and support.  Then attach the handle to the fabric fastener band.

  • Washing Instructions: You can hand wash this belt in warm water with mild detergent. Triple rinse it to get out all of the soap. Do not twist the belt to wring out the water. Instead, squeeze out the water and allow the brace to air dry.
  • Other features:

The belt is flexible, lightweight and breathable, which is great for active use.

The pulley system amplifies your force by five, making it easy to apply compression.

The high-quality brace comes at a lower price than many of our competitors’.

  • Color: Black. 

Sizing Chart

SizeHip Circumference
Universal 23" - 50"
All measurements taken in inches

Additional Information

L Code: L0621

Customer Reviews




Best device for si joints ive found


This is my 3rd device for widening of my si joints. It is the best by far. I like the adjustbility. I felt relief immediately when i put it on.
Was crushed through the pelvis 20 years sacrum was broken thru on each side where the joint is.. so from time to time one or the other of my hips comes out of socket opposite where the si widens..obviously painful. Sometimes it has been out for months especially due to winter and arthritus. Im 64yrs old...nice to find some comfort
This support is made perfectly for the problem.
Thank you for the relief!




I like this brace.


I have been wearing this back support for three months after surgery an had on problem with it an easy to take on or off .

Torben Nielsen



Life is great again!


Thank you very much for quick shipment of my new brace, it arrived yesterday, in five minutes I had it on. I tightened it and for the first time in several years I could straighten up to my normal height of 6' 1''. What a wonderful feeling and the usual pain associated with walking was gone. It feels like an other five years have been added to my 93. Life is great again. Thank you, thank you so much.

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Sacroiliac SI Joint Compression Brace for Coccyx Tailbone Pain Relief

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