Lilac Long Pleated Formal Dress: Mac Duggal 49938 I Was Here.: Gerhard Schrder. Be a total knockout in this long lilac pleated formal dress 49938 by Mac Duggal. In vintage lilac purple, this long special occasion dress has a pleated surplice v neck bodice with a side cut out that wraps around to the back. A large rosette at the side of this long purple dress tops the pleated long skirt that opens in a side slit before ending at the floor. Undoubtedly the star of the show for prom, fancy wedding receptions, and other formal events, this long formal dress is one that no one will soon forget.