Two French sites where you can see what one is :

http://www.aufeminin.com/shopping/couple/dossiers/lingerieco...

http://www.lingerie-carrade.fr/selection.htm


And a couple of English-language sites for the same product to compare :

http://www.satinnlaceshops.com

www.silk-stockings.co.uk/chantily_lingerie.htm

If it’s long and not too flared, straight or A-line, then it may be described as a “slip” (watch out for the false friend, as a “slip” in French is of course the knickers/pants/underpants – depending on where you come from). If it’s shortish and flared, then it may even be a “baby-doll”. In either case, if there’s are pants with it, then you would say “slip ensemble”, “babydoll set”, or similar.

As to length, a “combinette” appears to be long, but not ankle-length. In that case, I would go for “long slip (ensemble/set)”, a “full-length” one being ankle-length.


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Note added at 2001-12-23 17:15:31 (GMT)
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I suspect that what this is called may vary from country to country anyway!