In 1986, SIS by Lekolar initiated a collaboration with the Danish doctor A.C. Mandal.
Mandal had studied furniture for educational use and seating positions, resulting in a number of publications.
The result of the collaboration was, among other things, the first ergonomic and height adjustable educational chair – BackUp.
The chair has a tilted seat and allows the body to move.
SIS by Lekolar
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