Size: S : 73 - 74cmSize: M : 77 - 78cmSize: L : 83 - 84 cmSize: XL : 87 - 88cmSize: XXL : 93 - 94cmBrand new and high quality.Help you ease back and shoulder pain through 6 magnetsaligned down the center spine and 6 across the lumbar regionMake you stand taller and straighter.Comfortable and light to wear underneath clotheswith no discomfort or visibility.Specifications:Size: Waist:App76~84cm(App30"~33")(strap is adjustable)Net Weight:85gPackage Weight:95gColor:WhitePackage Included:1 x back belt