Fashion's biggest faux-pas
They are sure to be lurking in many wardrobes, kept just in case of a fashion revival.
But for the owners dreaming of one day dusting off these shell suits, leg warmers or culottes, the message is clear. Don't.
Research has confirmed what those of us blessed with taste already knew - that these items are among the worst clothing and shoe crimes of all time.
Others to make the top ten are clumpy clogs, sweaty ugg boots and skimpy tank tops. Scroll down for more...
Harry Enfield's Scousers made shell suits famous
Daggy ponchos, braces, ra-ra skirts also made the list, as did the platform shoes still favoured by the Spice Girls.
Women are now being urged to take heed of the results and clear out their closets, just in case they are ever tempted by madness or misguided celebrities to wear them again.
The nylon shell suit, popular with all ages a few decades ago and a particular favourite of Jimmy Savile, came first of the horrors on the list compiled by fashion website missbutterfly.com. Scroll down for more...
Ugly Betty took ponchos to even deeper depths of fashion hell
A company spokesman said: "Shell-suits definitely deserve to be voted the worst fashion crime of all times.
"I can't believe how much they took off in the eighties. Let's just hope they don't make a return."
Unfortunately, the Welsh hip-hop band Goldie Lookin' Chain appear to have a liking for the brightly-coloured suits, and there is danger of a mini-revival at least. Scroll down for more...
All-time fashion great: Travolta in Saturday Night Fever made flares cool
The tenth-worst item, furry Ugg boots, have a similar endorsement from celebrities such as Kate Moss and Sienna Miller.
Miss Moss has also included item number six, tank tops, in her collection for Top Shop - proving once and for all that it doesn't pay to follow the crowd. Scroll down for more...
Jimmy Saville in one of his many classic bad-taste shellsuits
Researchers also asked the 1,500 women surveyed to name their favourite fashion item of all time.
Jeans, pioneered by Levi Strauss in the mid-1800s, were voted number one, while the classic little black dress came a close second.
Mini skirts were third, followed by the bikini, knee-high boots and flared trousers, a hippy favourite and perfect for balancing out a big bottom.
Stiletto heels, trainers, polo-neck jumpers and the trendy trench coat also made the list.
The spokesman said: "I'm not surprised jeans came out on top, they are stylish, hard-wearing and go with anything.
"They're a staple wardrobe item."
Fashion's biggest faux-pas | the Daily Mail