The push-up bra has been hailed as the greatest ever fashion invention.
The bust-enhancing bra came top in a survey of 3,000 female customers conducted by high-street store Debenhams, beating boot-cut jeans into second place.
The bra scooped almost 20 per cent of the vote in the poll.
Caroline Adams for Debenhams said: "Push-up bras have become a wardrobe weapon for millions of women across the world.
"I'm not surprised to see it in the top spot, push-up bras have revolutionised women's lingerie and remain a best-seller in-store."
Pull-in pants, designed to flatten a woman's stomach for a slimmer figure, came in third, followed by stilettos in fourth.
Stiletto heels became popular in the 1950s, taking their name from thin daggers.
Many of the items on the list are designed to improve and enhance the figure of the wearer.
Caroline Adams added: "Fashion items that can help create the perfect silhouette have become must-have items for women and there is no shame in faking the body beautiful."
The classic Little Black dress, as made famous by Audrey Hepburn in Breakfast at Tiffany's, came in fifth place, while the revolutionary mini skirt took seventh.
The Greatest Fashion Inventions Ever:
1. Push-up bra
2. Boot cut jeans
3. Pull-in pants
4. Stilettos
5. Little Black dress
6. Hipster jeans
7. Mini skirt
8. Strapless bra
9. Support tights
10. Kitten heels
11. Stockings
12. Sports bra
13. G-String
14. Flip flops
15. Chicken Fillets
16. Pencil skirt
17. Hot pants
18. Boy-shorts
19. Trainer socks
20. Comfortable trainers
