Spectacular Asymmetrical Neckline Long Dress With Slit from Mac Duggal The exquisiteness of this dress designed by Mac Duggal 26665 is going to leave everyone in awe. The gorgeous dress has a lovely mermaid silhouette with a thigh-high slit and pleats. The asymmetrical neckline has a beautiful bow detail. The dress comes with a simple solid pattern that looks elegant and minimalist. Beautiful in every way, the dress is the perfect outfit for cocktail parties.