Try this link to view some off white linen dresses:http://www.thefind.com/search?query=women%27s+off-white+linen+dress
I think you're going to have a problem finding a length below the knee in a linen dress, because I'm seeing mostly shorter dresses, as linen is quite a 'summery' material. I didn't understand if yes, you wanted sleeveless or NO sleeveless. : ) Also, would a 2 piece linen suit be acceptable? Approximately what size are you looking for? That might help me narrow it down to some specific styles.
I found one I absolutely LOVED, but it was only in light purple and white--no offwhite. The style was very simple and it was right below the knee, with a cap sleeve.
I'm still searching other sites for you, but please let me know if you find anything you like, or similar to what you're looking for, at the link above. Also, are you looking to buy in a store, locally, or would you order online?
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