Tesco has apologised after a customer was left disgusted by the caption on a T-shirt in the childrens' clothing section.

The T-shirt had a picture of a mermaid on it, and the caption described her hair as "too fluffy".

Katie Wells, a mum of two, from Dover, Kent was out shopping with her children when she spotted the item on sale.

The T-shirt being sold at Tesco

It had a picture of a mermaid from the popular children’s book ‘That’s Not My Mermaid’, Kent Live reports.

The book, which is written by Fiona Watt and illustrated by Rachel Wells, is on sale via Amazon and is in bookshops. Tesco has since apologised and confirmed they will not be buying any more.

An example of the Usborne book's cover

Katie said: “We were walking down the main middle aisle and we saw the set from a distance. I got excited because diversity in clothing is particularly rare.

“I read the text on the shirt and was really shocked. It’s not something any child should read on a t-shirt, and it perpetuates a stereotype – it’s racism.

The book is one of a series of Usbourne  ‘touchy-feely’ books, where children can run their fingers along some of the mermaid’s features, in this case her hair.

The notion of touching a black woman's hair is also problematic  - with its texture historically being used to justify enslavement.

Katie believes Tesco should not be stocking the product.

She added: “Tesco needs to do better. They clearly need to diversify their purchasing team and be aware of this.

'It is not acceptable and I would like them to remove this T-Shirt from sale in all of their stores'

“It is not a new issue, especially with all that has been in the media recently, ignorance is not an excuse anymore. It makes me feel so sad and angry that this is how black children are growing up.

“All children deserve to see themselves in children’s clothing, books and toys so that they know they are valued and celebrated. Bigger retailers like Tesco have the power to make these things happen, so why aren’t they?

“It is not acceptable and I would like them to remove this T-shirt from sale in all of their stores.”

A Tesco spokesperson said: “We remain absolutely committed to ensuring that Tesco is a place where everybody is welcome and apologise for any offence caused.

"We will not be purchasing any more orders of this product.”