Wedding dress to compliment khaki pants on groom

Is it not possible for him to dress up, even a little bit for such an occasion?

if he goes really casual, It does rather limit you to a short sundress or something similar.

Would he consider at least wearing a blazer? You could then pick something dressier like this:

http://www.revolve.com/spell-the-gypsy-collective-peaches-slip-dress/dp/SPEL-WD80/?d=Womens&page=1&lc=43&itrownum=15&itcurrpage=1&itview=01&plpSrc=%2Fr%2FBrands.jsp%3F%26aliasURL%3Ddresses-bohemian%252Fbr%252Fba7ed3%26s%3Dc%26c%3DDresses%26sc%3DBohemian%26color%255B%255D%3Dwhite%26color%255B%255D%3Dwhite%26sortBy%3Dfeatured

I'd look at Macys at Adrienne Papelli? I think it's spelled like that. She does a line of long white dresses that aren't too formal.

There are a million options. Have you tried going to the mall? Your local department store?

@jacks Adrianna Papell ... I used to sell BM dresses and for a solid year that's all they wanted was the Adrianna Papell. I like the blazer idea! It looks much cleaner with the dress. Maybe try looking at BM dresses that come in white. They're usually simpler than wedding gowns

Yes that's it! Thanks Emily!