I'm attending a wedding at the beginning of November (the wedding is being held here: http://www.hallofstate.com/rental/welcome.htm) and need a nursing friendly dress that won't require me to go to the car and get undressed all up top. I have a wrap dress like this, but in a green color with navy blue lines. Is this wedding appropriate? If not, I'd love suggestions/examples. Thanks!!

http://bananarepublic.gap.com/browse/product.do?vid=3&pid=899259002