I recently laundered this navy BR "silk" top for the first time and was surprised to see the tag said machine wash 100% polyester! The tag on the orange top I bought at the same time says 100% silk.

http://bananarepublic.gap.com/.....=381151012

I still like the top and will continue to wear it, but am perplexed. I've emailed customer service to ask if all of the navys are polyester but have yet to hear back.