Look the business: All-in-ones

You've heard of the power suit – now make way for the power jumpsuit. The catwalks went crazy for all-in-ones this year, showing sexy and sleek tailored pieces like this one from Yves Saint Laurent ... Photograph: PR/PR - YSL press office

... as well as less dressy jumpsuits, like this one from Marc Jacobs complete with knitted scarf and slouchy bag for a casual daytime look. Copy the MJ catwalk style by cinching in at the waist with a belt Photograph: PR/PR - marc jacobs press iffice

Slip a jacket or blazer over this sleeveless zip jumpsuit for the office; slip it off again when you go out after work for an effortless injection of instant glamour. Available from Whistles (£150) Photograph: PR

A one-shouldered playsuit might not seem particularly office friendly, but the beauty of an all-in-one is you can layer up as appropriate. Team this Topshop number (£60) with tights, stacked heels and a cardy on top for when you're in front of your computer screen; dress it up with high heels and vintage jewellery for office parties Photograph: PR

Surprisingly, perhaps, Marks & Spencer is hot on the jumpsuit trend this season, with a whole range of tailored all-in-ones for smart officewear. Try this patterned jumpsuit (£65) by Zandra Rhodes to make a head-turning statement Photograph: PR

A well-tailored jumpsuit can help structure a work wardrobe: this short-sleeved all-in-one by Ted Baker (£149) can be layered with a white shirt underneath or a blazer on top, or dressed up with bold or vintage jewellery for a little femininity Photograph: PR