OP-shops run by the St Vincent de Paul Society are getting behind a TikTok trend called 'duping' which focus on finding near identical off-brand alternatives to luxury items.

The Vinnies spin on the fad called 'dupe the room' tries to encourage people to shop sustainably on a budget at the second-hand stores.

Head of merchandise and retail innovation at Vinnies, Liz Randle, said the duping trend...