Even though shares in Marks and Spencer’s have been struggling in recent weeks, the latest report from Which? has revealed that Marks and Spencer’s Knickers (for men) are still the UK’s favourite brand. Which? tested the Marks and Spencer’s pants against cheaper George Trunks from Asda, at £1.75 a pair, and F&F from Tesco at £1.66.

Calvin Klein’s £20-a-pair Body Trunks were also tested and were rated last of the four after doing badly in tests for pilling, or bobbling. Which? said the Marks and Spencer’s trunks did not shrink too badly, but Calvin Klein’s shrank particularly in the leg. The gussets on Tesco and Asda brands shrank the most.

A Marks and Spencer’s spokesperson said: “We are very pleased with the findings. We do an awful lot of testing and always felt they measured up to scrutiny.”