Each piece is made from a metal wire frame, available in black and white, and dressed with blocky armrests made out of solid acacia wood. They are also available with removable 3D-knitted cushions and intended for use in both indoor and outdoor spaces.
Fereday and Rex Kralj's ambition for the design was to marry "geometric shapes and uncompromised comfort" while maintaining the "elaborate craftsmanship and subtle curves" of the Shell Chair, which was originally made out of two plywood panels.
"The new collection's name derives from the word 'zelo' in Slovenian, meaning highly or immensely, and reflects Tom Fereday's respect for Kralj's design fundamentals," said Ljubljana-based Rex Kralj.
Fereday added: "The question, 'what would Niko Kralj do?' is central to Zelo's design process. The new chairs are my take on a design classic, each with its individual character, manufacturing technique and outdoor furniture version."