Archal, the aluminum chair designed for conferences and public settings, is now available in a high-back version. The chair is available in three models: 4-leg stackable with built-in stacking protection, 4-star swivel base, or a 5-star height adjustable swivel base. The Archal frame is cast aluminum, texture powder coated or polished; the armrests match the frame. The Archal seat shell is available in ash, Wenge or oak veneer, in white or black stained. Archal is available with an upholstered seat, upholstered inside seat and back, or fully upholstered. The high-back chair is only available fully upholstered.