Sisu is a collection designed by Nanna Ditzel and would still be in the archilie down for a while without Danh Vo's curiosity.

Nanna Ditzel is known for her collection: Hallingdal, which she produced in 1965 Kvadrat created. When Danh Vo was allowed to curate an exhibition at the Danish National Gallery, he came across Sisu, who was subsequently given a place in the exhibition called 'Take My Breath Away'. Danh vo discovered that Nanna Ditzel often did not attach her name to her designs.

Sisu is a textile woven with thick, bulky, woolen yarns. The thick yarns create the bold, yet subtle check patterntroon extra to its full potential.