Promote Healthy Posture - Our ergonomic seat shell has a gentle curve, guiding you to an ideal sitting position. Say goodbye to slouched backs! Unrivaled Lumbar Support & Adjustable Height - Targeted support for your iliac crest minimizes back pain, while an easy lever ensures optimal posture with feet flat on the ground. Customizable Head Support - Adjust the headrest effortlessly up and down by 3.5 inches and enjoy a 45° rotation angle for personalized comfort and optimal neck positioning.