Relieve Lower Back Pain Back Brace Contains 4 Memory-Aluminum Stays That Are Quadruple Harder Than The Commonly Used Pp StripsAnd 2 Steel Springs Placed Along The Waist Side, Offer 360 Stronger Vertical Support To Lower Back,Prevent Excessive Rolling Of Your Muscles And Decrease The Pressure On Your Discs .Well Wear Under ClothesThe Back Support Made Of 4-Way Stretch Elastic Material3D Knitting Technology By Different Compression Levels, For Superior Fit,Breath And Comfort. The Inner Layer Is Made Of Velvet Fabric, Giving An Ultimate Baby-Skin-Like Silky Touch,Perfect For Dressing Internally.Prevent Back InjuriesBack Support With 2 Elastic Straps Are Designed To Add Extra Compression Around Lower Back To Prevent Back Injuries From Weight Lifting, Long Time Standing Or Sitting, Doing Housework, Working, Etc. Relief Waist Muscles Ache, Disc Herniation, Sciatica, Scoliosis Etc When Wearing The Back Belt.Considerate Detail Design2 Silicone Anti-Skid Bands Are Designed On The 2 Sides Of The Waist,Prevent The Waist Support Belt From Rolling Up When Sitting, Bending Or Doing Other Activities.The 1.5'*3.7' Wide Size Velcro Of 2 Elastic Straps Provides Strong Adhesion Far Beyond Your Expectations, Made Of Pvc Material That Usually Used For Babies Clothes, Will Not Scratch Your Skin Or Damage Your Clothes.Durable & Satisfied ServiceThe Waist Support Adopts Double Seams, The Quality Is Strictly Controlled, And It Is Very Durable.Size:M Length: 95cm Width: 22cmL Length: 108cm Width: 22cmXL length: 120cm width 22cm