Jewish Wedding Dress Code. Black tie is quite typical with the men in black dinner suits which can be hired if you dont own one and the women in long or short evening dresses. Your collarbones up to your knees must be covered as will elbows.
Trousers are not worn and skirts and dresses must fall below the knee including when sitting. Men may still need to cover their heads with a yarmulke but the synagogue will most likely provide them for you at the front door. Although still leaning towards modest dress codes in conservative Jewish weddings are less strict.
Besides stockings or pantyhose they will wear anything else they need.
A yarmulke will be worn on the head of men as well as long sleeves. A determining thread concerning Jewish dress code is the insistence on clothing as identity distinguishing the Jew from gentiles as well as adherence to. In some circles you may see women wearing kippot too. Couture De Bride and more.