Jam chair by Calligaris

Dezeen's A-Zdvent calendar: Jam Chair by Archirivolto

Moving on to J, the next design in our festive alphabetical countdown is the Jam Chair created by Italian studio Archirivolto for Calligaris.

Designed in 2006 for Italian furniture company Calligaris, the Jam Chair is instantly recognisable thanks to its two-colour polypropylene shell.

Archirivolto, founded by designers Claudio Dondoli and Marco Pocci, moulded the dining chair so it features a glossy white seat on one side and a translucent back on the other.

Rows of oval-shaped holes pierce the back of the shell and reveal outlines of the back material, which is available in a range of colours.

Chrome-finished steel tubing is used to create the legs – either straight or bent to create a sleigh-style base.

The sleigh version has a leg that curves from the seat, down across the floor then back up to the shell on either side.

Clear plastic shockproof feet are added to the base to prevent it scratching and slipping on floor surfaces.

The design also comes with a spider base, as an office swivel chair and a barstool – all with the same shell composition and oval punctures.

Archirivolto has created a series of chair designs for Calligaris since Dondoli and Marco Pocci started the studio in 1983, including the Alchemia chair with a latticed back and the Sorbetto chair that features a gently curved seat.

Dezeen is publishing an A to Z of iconic chairs to count down the days until Christmas. Catch up with the list so far »