Sparks and Mensa, the high street department store used by people with more brains than cash, has developed the latest must have trend for women: adjustable height heels.
"We've all been there," said product designer Frank Boshell. "Sometimes we need five inches, other times we need flats. It's a pain having to carry shoes around in your handbag, so we developed these new heels."
Using an innovative telescopic system for the heel, and a flexible sole between the heel and toe allows for a rapid switch between several different height heels.
"Say you're off out for a quite drink with girls," said Boshell. "You want a nice easy height heel for negotiating pavements. If you have to go across some grass say, or there's a lot of walking, it's much nicer to wear flats, so with a quick twist and pop, your shoes your wearing are flats. You don't even have to take them off!"
The shoes will be modelled at this year's Paris Fashion week, and come in a variety of styles and colours.
"We've developed this style for strappy sandals, court shoes and peep-toes," said Boshell. "I've been wearing the court shoe version for days now, and they're really comfortable."
S&M have patented the telescopic heels, but other shoes companies are looking at the design and how well it sells. There are concerns about safety issues, of a sudden sliding in of the telescopic mechanism if it's not secured properly.
"We've thoroughly tested the shoes," said Boshell. "Even my mother can work the telescopic mechanism, which tells me they're safe for any one!"