Size 

M--  Suit for Waist: 60-90 cm / 23.6-35.4 inch
L-- Suit for Waist: 70-100 cm / 27.5-39.3 inch
XL-- Suit for Waist: 80-105 cm / 31.5-41.3 inch
XXL-- Suit for Waist: 90-115 cm / 35.4-45.2 inch
XXXL-- Suit for Waist: 105-125 cm / 41.3-49.2 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.

Product Description
Color: Black
Material: Composite Material
Size: M, L, XL, XXL, XXXL (Please Select)
Suit for: Men, Women, Adults, Male, Female
Applicable Scene: Running, Climbing, Golf, Basketball, Football, Soccer, Volleyball, Tennis, Badminton, Mountaineering, Hiking, Cycling, Biking, Weight Lifting, Yoga, Sports Fitness and so on
Please allow 1-2cm measuring deviation due to manual measurement
Due to various monitors and lighting conditions, colors may be slightly different from listed photos.

Features
1. Economy Spandex Back Support is designed to remind workers of proper lifting techniques while also enhancing the body's intra-abdominal pressure, moving the stress away from the spine for back pain relief. Features rubber track webbing to help keep support in position. SIZING To choose your size, use flexible measuring tape and find the circumference around your body at your belly button. The support should fit snugly around your hips with the front of the support two-fingers width below your navel. An easy-to-use hook & loop closure keeps the belt securely fastened while in use and can be worn over or underneath clothing. Adjust the suspenders straps to fit securely on your shoulders without causing tension. Turn it into a back support belt by simply detaching the shoulder straps from the belt.
2. Back Supports provide lower back support and abdominal support for lifting heavy objects. Tightening the back support belt enhances the body's intra-abdominal pressure and moves the stress away from the spine. When the back support is on correctly, the worker will have additional support for lifting and is more likely to use proper posture. When not lifting, be sure to loosen the belt. Great for airport luggage handlers, warehouse/distribution employees, material handling, construction crews, maintenance, assembly/fabrication, landscaping/grounds and jobs that require heavy lifting. We cannot guarantee that wearing a back brace will prevent workplace injury or be a cure for lower back pain, but when used properly these supports will provide extra lumbar support, promote proper lifting techniques and help you through a work day of bending, twisting, and schlepping. 
3. COMFORTABLE Contoured high-cut front panel for a comfortable fit
4. NON-CONDUCTIVE Polypropylene stays for long-lasting integrity
5. SUSPENDERS Adjustable, detachable suspenders keep belt in place
6. Rubber track webbing prevents riding up

Packing List
1 Piece * Sports Waist Support Belt