IT was a ladies' day out for Rosanna Davison and her mum.
The newly married model and her mother Diane attended the opening day of the annual RDS show.
And it was a low-key affair for the usually the glamorous duo who dressed down in jeans and flats.
But today the style stakes will be stepped up a notch for Ladies Day.
Thousands are expected to descend on the Ballsbridge venue in their finery for the contest of best dressed lady and man.
However, the focus will mainly be on the show jumping events with up to €1m in prize money up for grabs.
The 141st Dublin Horse Show is expected to generate more than €40m for the local economy with around 100,000 visitors.
The best of Irish-bred horses, competitors and breeders are expected at the venue over the next five days.
And the highlight of the five day event is Friday's Aga Khan Trophy.
Miriam O'Callaghan was at the show to officially launch the new Brian Boru crown for the Jewels for Cures not-for-profit.
"She's been the uncrowned queen of Ireland for long enough," said Prof John Crown, pretending to put the crown on her head. Let's make it official."
Apart from the equestrian competitions, organisers said visitors can enjoy an array of music, entertainment, arts and crafts, as well as food and fashion.