The upholstered model of Danish designer Simon Legald's Form Chair proves even more office-worthy with height-accommodating gaslift. Handily adjusting seat height for comfort brings an added utility to Form's much-lauded ergonomic comfort and freedom of movement. The contoured shell shape underwent more than 20 prototypes over 3 years before Simon reached the results he envisioned. Normann Copenhagen's signature shell chair remains an exemplar of highly functional modernist appeal.