Metal carcass is a main design solution of the model. Seat leans against a crosspiece, which works as a foundation. Oak legs, triangular in cross section, correspond strictly to metal trenches. Legs are fixed with screws. Construction of the chair back is based on Akerblom’s Line. So you can seat on a K1 chair for a long time and your back will not suffer. The seat is made in wear-resistant fabric. There is a layer of felted textile under it, which creates perfectly balanced stiffness of the seat.