SUPERMODEL Miranda Kerr dazzled in red as Australian designers showed off flowing designs and bright colours for the David Jones spring summer season launch.

Hundreds of fashionistas and designers watched on Tuesday morning as Kerr walked the catwalk for the Australian-themed parade at Sydney's Hordern Pavilion.

David Jones' Colette Garnsey praised Kerr, who has flown in from New York, ahead of the show, saying her "infectious Australian smile" was fitting for the parade.

Kerr ended the show wearing a red one-shouldered gown by designer Alex Perry, and was met at the end of the catwalk by male models wearing calibre suits.

Some 24 Australian designers, including Sass and Bide, Akira, Trelise Cooper and Kirrily Johnston, showed their summer collections, with bright flowing and bohemian styles dominating.

Click here to see the trelise cooper collection