The vest costs £20 and comes in sizes 6 to 24. It's available in beige, white, black, or dark marine. M&S says it's made from breathable linen.

The vest has a round neckline and no sleeves. It has a button and keyhole fastening at the back.

The vest is made from 15% linen and 85% viscose. Some sizes are selling out online.

One shopper said: 'I love these vests. They're perfect and stylish.' Another said: 'It fits well and is soft.'

Someone else said: 'It's comfy and cool.' Another wrote: 'The top is nice and comfortable. It's just what I needed for hot weather.'

Another shopper said: 'These tops are perfect and great value.' A customer said: 'I love the fit. It's going to be my summer staple.'

Some shoppers had problems with the sizing and length. One said: 'It was too short.'

Another shopper said: 'I love the look, but the sizes are small and not worth the money.'

Someone else commented: 'The sizing is all over the place. I ordered two tops in size 10, but they were different sizes.'

M&S isn't the only store selling linen vests. Uniqlo has a similar vest for £24.90.

Uniqlo's vest comes in seven colours and sizes extra small to extra large.

Next has a set of two linen vests for £26. The set comes in sizes 8 to 20.