Contact us
Ask A Physio
Shipping Policy
Returns/Exchanges
Tax Exempt Shopping
The SI-LOC Sacroilliac Support belt by OPTP is effective for low back pain and SI joint pain relief. This belt firmly compresses the SI joint. Therapists and patients prefer the SI-LOC over other back braces and SI support belts because it stays in place. Patients prefer the comfort of the SI-LOC’s lightweight, breathable fabric and non-bulky design that conceals easily under clothes.
SI-LOC offers relief from low back pain and back spasms, along with referred pain in the hip, pelvis or sciatic pain extending down the leg. Its patented, tapered design is wider at the innominates for even pressure distribution, making it comfortable to wear for long periods while keeping steady, supportive pressure on the SI joint.
Wide, medical-grade, non-slip pads prevent the SI-LOC from sliding while dual hook-and-loop closures allow user to adjust the anti-slip buckle to where it is most comfortable.
WASHING INSTRUCTIONS: Hand wash in cold water with mild detergent. Line dry or lay flat to dry. DO NOT USE HOT WATER. DO NOT MACHINE WASH OR TUMBLE DRY.
SI-LOC Sacroilliac Support Belt Sizing Chart
| Size | Pelvic Circumference (Inches) |
| Small/Medium | 30″ – 46″ |
| Large/XLarge | 47″ – 60″ |
 | Measurement: Measure the pelvic circumference at a level 1” above the most superior aspect of the greater trochanters. |
Yusuf Omar –
great product, great service,
anonymous Verified Customer –
Excellent quality for the price and fast service.
richard dewar –
product exactly as described.
very light, so easily worn when needed. velcro stays in place.
Brenda Rice –
I love this belt. It gives me the right support for my lower back but can’t really be seen under my clothes. Great quality and shipped quickly. Will def buy from here again.
Barbara, Retired –
Years ago I had a tailbone fall that was excruciating and I went through all sorts of treatments to try to get back to normal life but nothing was working for me. A savvy physical therapist noticed that my SI joints were involved (something my Dr’s didn’t catch) and started me using the Si-Loc belt 24/7 for the first 90 days then just during the day after that. It helped me so much. It gave my muscles the chance to remember where they were supposed to be positioned and get used to being in that place again on a regular basis instead of in the position that caused me all the pain. I credit the belt for much of the recovery I got. I would highly recommend the Si-Loc Belt to anyone dealing with low back or even hip pain that is related to SI Joints.
Nicole (verified owner) –
Good, solid belt for lower pelvic/SI joint support. Strong velcro holds in place. Great buy, great costumer service. Thank you!