S-- Waist circumference: 70-80 cm / 27.5-31.5 inch
M-- Waist circumference: 80-90 cm / 31.5-35.4 inch
L-- Waist circumference: 90-100 cm / 35.4-39.3 inch
XL-- Waist circumference: 100-110 cm / 39.3-43.3 inch
Standing in a relaxed position, measure waist at the level of navel (belly button). Do not assume you know your size. Do not select by pants size.

Features:
1.【Breathable & Lightweight Knit Fabric 】Our back brace for lower back pain women is made from ultra-soft, ultra-light, breathable, skin-friendly materials making it comfortable to wear all day long.While，the new high stretchy knit fabric automatically conforms to any body shape.let you easy to wear under any clothes.
2.【Immediate & Lasting Relief Pain】This lumbar support belt for women almost instantly relieves low back pain for people with a bulged or herniated disc, sciatica, compressed disc, lordosis, and many other acute (or chronic) lumbar issues.More importantly, This back support brace for women has a removable lumbar pad that cushions and compresses the lower back.you can customize your experience to offer different levels of support by using or removing the lumbar pad.
3.【Strong Support & Maximum Stability】This lumbar back support brace for women adopt a new generation of ergonomic support system(3D Curved Lumbar Panel+ 4 steel stays）which is 4X supportive than others.Curved Lumbar Panel is Replicates the spine's natural curvature to ensure exceptional back support at home, work, and lifting heavy .let you can keep in proper posture and great protect your back. Avoid injuries during gym exercising.
4.【Adjustable Dual Strap System for Custom Fit】Our lower back brace so easily adjusts the tightness depending on how much support you need. There are elastic and adjustable straps for a better fit, comfort, and compression.
5. The back brace for men women lower back is designed to provide exceptional support for heavy lifting, running, gardening, housework, driving, and other activities that may cause back pain .

Packing List
1 Piece * Waist Support Belt