Custom Leathercraft 5300X Top-Of-The-Line Mesh Back Support Belt, Xlarge Mesh 70% (Nylon 82%/Spandex 18%)/Elastic 15%/Hook & Loop 10%/Plastic Board 5% Imported 8-Inch Wide breathable Lycra Spandex power net mesh back panel Double 4-Inch wide elastic side panels adjustable for custom fit 1-1/2-Inch comfortable woven elastic adjustable suspenders Four internal stays keep belt from rolling Fits waist sizes 41-Inches to 49 inches