The body of HAL, ergonomically molded plastic, ensures a high degree of comfort and encourages dynamic sitting, being totally flexible allowing you to take different positions. The design philosophy of "supernormal" by Jasper Morrison is focused on meeting the needs and capabilities of a suitable for daily use and long lasting, resisting any formal extravagance ephemeral. Comfort and coloring can be varied through a fabric cover which is fixed to the backrest and very to the body by means of two strips of cloth and which can then be removed as easily or to vary the coloring or for cleaning. Chair not stackable base bending tubular steel frame.