For a daytime visit, men might get away with wearing a collared shirt, dark jeans and leather shoes. Women will have to wear a cocktail dress, a dress or pant-suit while men are expected to wear a dark business suit, dark shoes and a tie. Semi-formal This is the most common dress code for casinos. The following are always prohibited for day and night events: No torn, cut-off or stained clothing. Proper Nightclub attire includes: Business Casual Dress. Hello Ranee, both proper nightlife attire and swim attire is allowed for Encore Beach Club Nightswim events.