I’ve had several people ask me what to wear to the wedding, and my response to everyone has been the same: wear what you would wear to church. Our wedding is certainly going to be special, but it’s not going to be extremely fancy and formal. While we have some dashing green ties for the groomsmen, and the bridesmaids will be all decked out in lovely tea-length gowns, feel free to show up in a collared shirt and no tie, or dress pants and a nice shirt for you ladies.
Bottom line, we want our guests to be comfortable and enjoy the day. So, showing up in jeans and a t-shirt is probably a little too casual, don’t feel like you have to sit there in a suit and tie. :}