Designers use the terms 'ombré' and 'degradé' to describe this graduated colour effect, while the high-street just cuts to the chase and opts for 'dip-dye' .

However you want to call it, it looks great in knitwear - as pictured here - and in particular in this grey.

American brand, Vince, is perfect if you're a messy eater, while M&S has the reverse effect, ideal for disguising a bit of belly.

Left - Vince - Wool/Casmere Ombré Pullover - £215 From StyleBop

Below - Marks & Spencer - Autograph - Merino Wool Rich Slim Fit Dip Dye Jumper With Cashmere - £55