100% Polyester Whether you're an architect, illustrator or just need a stool that will give you a break from your standing desk, this adjustable drafting chair fits the bill. A generously padded seat and breathable mesh back will keep you comfortable and productive. Mid back office chair with upholstered back and seat with CAL 117 fire retardant foam Pneumatic adjustable height swivel seat and adjustable height foot ring for a custom fit Ergonomic mesh drafting chair ideal for above average height workspaces PRODUCT MEASUREMENTS: Overall Size: 26.25"W x 26"D x 43-49.25"H; Seat Size: 18"W x 18"D x 26.5-32.5"H; Back Size: 18.5"W x 18.5"H