This Posture Corrector Belt is a magnet therapy vest design rely on mechanics principle.The far infrared health care magnets are arranged in the product in the position of cervical and lumbar vertebrae， in order to promote blood circulation， eliminate back pain and shoulder acid，  prevent the distortion of the spine and it benefits to the prevention of teenager habitual humpback.<br /><br />Features:<br />1. 100% Brand new and high quality <br />2. Ease back pain with 12 placed magnets target the spine and lumbar region <br />3. Help you stand taller and straighter to make you look better and feel younger <br />4. Sporting design helps you correct harmful posture <br />5. No restricting， unisex design for man and woman <br />6. Have different sizes for both children and adults<br />7. Comfortable and light to wear underneath clothes， with no discomfort or visibility<br />8. Suitable for working， walking， exercising and relaxing <br /><br />Specifications:<br />1. Size :(suit for under the chest circumference)(1 inch=2.54cm)<br />S : 56-71cm  (strap is adjustable)<br />M : 60-75cm  (strap is adjustable)<br />L : 65-80cm  (strap is adjustable)<br />XL : 70-85cm (strap is adjustable)<br />The size is  for reference only because the belt is resilient<br /><br />2.Color: white<br />3.Body Shield material ensures maximum breathability<br />4.Material:Polyester+Spandex<br /><br />How to use:<br />1. Pull shoulder straps over shoulders making sure that fabric pouches with magnets are closest to your body.<br />2. Stretch waist belt around torso and fasten.<br />3. Adjust position and snugness as needed. Shoulder straps should pull back slightly on shoulder area，if needed pull waist <br />belt down slightly to increase shoulder pressure.<br />4. Wash by hand in gentle detergent. Air dry.<br /><br />Package included:<br />1 x Magnetic Posture Corrector Belt <br /><br /><br />Notice:<br />Size may be 2cm/1 inch inaccuracy due to hand measure;<br />Color may be little different due to monitor， thanks for your understanding!