All change at Calvin Klein

Francisco Costa and Italo Zucchelli are to leave the US brand, to make way for ‘one creative vision’, possibly under Raf Simons

Brief encounters: Undressed at the V&A

From Queen Victoria’s mother’s pantaloons to Kim Kardashian’s ‘butt-lifters’ – an exhibition about the history of underwear explores the beautiful and bizarre inventions beneath our clothes

How Beyoncé’s Ivy Park made sportswear sexy

The singer’s fitness label rebrands bodycon by merging fashion and functionality. But can a gym-friendly version reclaim this unforgiving trend?