Dressy casual attire: We want you to be comfortable at our wedding. The dress code is dressy casual attire. For this time of year in Pennsylvania, may we suggest the following attire: Folks who'd like to wear a dress can wear sundresses, lightweight separates and flats or wedge heels for the outdoor ceremony on the grass. Alternatively, guests can wear a light dress shirt with khakis or other lightweight slacks; jackets and ties are optional. Please, no blue jeans or sneakers!