Casual: Women- A summer sundress is appropriate (just make sure the fabric isn't overly formal). Wedges or dressy sandals are the perfect footwear for a casual wedding, but sandals and sneakers are not. Men- Wear dress pants or khaki pants with a collared shirt. You can add a tie or sports jacket if you'd like, but it's not required. If it's chilly, feel free to add a sweater, as well. Steer clear of any t-shirts or tennis shoes.