Strong Lower Back Brace Lumbar Back Belt with 3 Replaceable Lumbar Pads Waist Support Trainer Trimmer Pain Relief Weightlifting Size for reference: M : Fits waist circumference 70-80cm/27.5"-31.5". L : Fits waist circumference 80-90cm/31.5"-35.5". X L: Fits waist circumference 90-105cm/35.5"-41.4". XXL: Fits waist circumference 105-115cm/41.4"-45.3". RGONOMIC DESIGN TO RELIEVE THE PAIN. Using ergonomic technology, the curvature of our back brace support stays perfectly fits the 26 angle of the human lumbar spine. This design helps immediately relieve the pain caused by sciatica, herniated disc, scoliosis, and sprain. EXTRA STRONG SUPPORT. The back brace contains 4 Replaceable Steel Stays which are far more supportive than PP. You can also change them into 4 ABS plastic stays for flexibility. 3 steel springs are placed in the middle and along the waist side, providing 360 support. BREATHABLE & COMFORTABLE. The back support belt is made of full mesh air breath fabric. Together with the one-piece high elastic design and original cross straps, it makes the wearing experience much more comfortable than other products. MULTIPLE APPLICATION. This lumbar support brace is perfect for stressful tasks and heavy lifting work, sports, long time standing, and sitting. Get the Back Support Brace now and enjoy your everyday life!