Nike’s new “Black” tennis shoes are a throwback to the days when the company’s first tennis shoes were all black.
It is a trend which has taken off with a growing number of sports brands, such as Nike, Adidas, Adidas Originals and Reebok, making it easier for consumers to choose from a range of colours.
But for some women, the shoes have left them with sore feet, particularly if they have long, thick nails.
“When you put on these shoes they make your nails look like they are on fire,” says Michelle, from Manchester, UK.
“I’ve had a couple of times where they have burnt off my nails and have caused them to get red and make them look like fire.”
As well as being more expensive than the black version, they have a different design to the white and orange ones, so are easier to wear.
“I don’t have to change my shoes in between,” Michelle explains.
“The colour is the biggest issue.”
Michelle’s problems are not limited to tennis.
“It is very difficult to find shoes that match my nail colour,” says Caroline, from Nottinghamshire.
“My nails have got really red in them and they are a really hard colour to get right.”
But, like Michelle, Caroline has to change her shoes in the morning.
“The nail colour on the outside of the shoe is not the nail colour I want,” she says.
“There are so many colours that I just can’t get my nails to match.”
And with a trend like this, where brands are trying to attract a younger demographic, it is only a matter of time before the nail-colouring trend takes over.
“A lot of women are getting a bit frustrated with the current nail colours, and they want a black or a grey one, and I think that’s just not going to happen for many more years,” says Rebecca, a consultant at London’s fashion design agency, Tangle.
It’s not just nail-care tips that women need to look out for, however.
For example, if you have long nails, it could mean you are at higher risk of developing psoriasis, a painful skin condition caused by a condition called psorophthalmia.
“What we have seen is the nail colours have taken over the nail care space, so it is more important than ever to get the right colour,” Dr Lacey says.
While the nail shade has also become more popular, Dr Lacy says that if you are worried about the colour of your nails, ask your doctor to check your nail colour before you put them on.
If you want to know more about nail care, you can get more information on how to care for your nails from the NHS.