Glossary entry (derived from question below)
Italian term or phrase:
sinuosità
English translation:
Curvaceous fit
Italian term
Ireland
20 yrs+ quality translations, Trados
Native in: Spanish 
, English (Variants: British, Irish, UK, US)
Works in: English to Spanish, Spanish to English, Italian to English, and 8 more.
sinuosità
I suoi abiti fanno scandalo per la loro sinuosità, dato che aderiscono al corpo, come quelli di Paul Poiret e sono indossati da attrici e ballerine come la Duse, Sara Bernardt, Mata Hari, Isadora Duncan.
| 4 | Curvaceous fit |
Lisa Jane
|
| 4 | curves |
Simon Charass
|
| 3 | curveness |
Antonio Tomás Lessa do Amaral
|
| 3 | curvy |
Elena Aclasto
|
| 3 | sinuous shape / figure hugging shape |
Lara Barnett
|
Proposed translations
Curvaceous fit
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Note added at 3 hrs (2016-03-01 17:36:43 GMT)
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You need to add a noun (eg: fit) an adjective is not enough to render the Italian term.
If a more liberal translation is preferred you could go for something like
/ their close fitting flowing design/.
Portuguese translations
Native in: Portuguese (Variants: Brazilian, Mozambican, Angolan, South African, European/Portugal, Cape Verdean)
Works in: English to Portuguese, Italian to Portuguese, Portuguese to English, and 4 more.
curveness
Italy
green translations
Native in: Italian
Works in: English to Italian, French to Italian, Italian
curvy
Canada
Over 20 Years Freelance Translation
Native in: English , French
Works in: Italian to English, French to English, English to French, and 9 more.
curves
Another possibility.
United Kingdom
www.lingocraft.co.uk
Native in: English (Variants: British, Scottish, Irish, Singaporean, UK, South African) 
Works in: French to English, Italian to English, Romanian to English, and 2 more.
sinuous shape / figure hugging shape
(...or form)
or
"... for the sinuous shape they created."
Discussion