I tested Kim Kardashian’s Skims’ shapewear against M&S’ range – my top pick is a bargain and instantly boosted my bum

M&S is king of British lingerie retailers. But while it has our everyday essentials covered, Kim Kardashian’s Skims has a firm grip on the shapewear market. Skims revolutionised underwear with high-tech fabrics and inclusive colourways, but with prices often north of £100, it is too costly for many. But M&S now has a budget-friendly option,...