Costelloe was a designer for the likes of Princess Diana, Wedgwood and British Airways. For the last 20 years, he partnered with Dunnes Stores to produce a range of menswear, womenswear, homeware and more.

The Irish designer evoked the heyday of Palm Springs in his new collection.

The Irish designer’s runway bloomed with pastel mod coats and preppy skirts and suits.

Costelloe's 'Once upon a Time' autumn/winter 2024 collection presented a mix of whites, dark greys and plenty of tweeds