The Contour Regular/Average chair is designed with a standard backrest and seat pan to accommodate the average body type and comfortably fit up to 95% of users. It offers enhanced thoracic and lumbar support for optimal back alignment and long-term seated comfort. The Regular chair is fully adjustable for a custom fit, including back angle, back height, seat height, seat tilt, and seat pan depth. The seat height range adjusts from 16.5″ to 21.5″. The seat pan size is 21″ W x 20.5″ D, and the high-backrest measures 19.5″ W x 22.5″ H, providing excellent support for the mid and upper back. The pivoting kidney armrests can be adjusted in height and width and can also be completely removed.