Features: Breathable material to reduce heat. May be worn during any daily activity. Extra elastic strap helps enhance core stabilization Stretchy Grip Wrap inner lining with silicone prevents slipping How To Wear: Position belt just below belly for support and bring straps to back and fasten securely. Use the additional elastic strap to apply compression. Secure the fixed side first, pull over the strap. Position the outer strap over the inner strap. For more compression, pull the outer strap across the inner strap to tighten. Application: Hypomobility of SI joint Reposition pelvic alignment after birth Sacroiliac joint pain Sacroiliac joint instability Coccydynia Sizing Chart: Measure around the hip.