Precise Adjustable Lumbar Support Personalized Your Low Back Care Turn the side knob to adjust the lumbar plate, increasing or reducing support to fit your waist and ease lower back pressure. Luxuriously Soft and Long-last Comfort High-Density Foam Double Padded Soft Leather Soft Armrests Wider and Deeper for Extra Comfort Expanded Seat Size for All-Day Ease With a wider 22.1" seat and a deeper 20.5" design, this expanded seat size delivers extra comfort and pressure-free sitting for long hours.