Crystal Cruises will debut a simpler evening dress code, beginning Dec. 21. After 6 p.m., the new suggested attire simplifies the current options of resort casual, elegant casual and black-tie optional to just two preferences: ‘Crystal casual’ and ‘black-tie optional.’

‘Crystal casual’ is defined as a dressed-up version of casual attire and includes dresses, skirts, dressy slacks and blouses or sweaters for women, and dress shirts and sport coats (no tie required), open-collar or collared polo shirt and dress pants/smart trousers for men.

On more formal evenings, ‘black-tie optional’ calls for dark suits with ties or tuxedos for men and formal cocktail or evening dresses, or formal evening separates for women.

‘With an increasing mix of domestic and international vacationers, it is important Crystal stays on trend and supports the changing style preferences among them,’ said Crystal president and COO Edie Rodriguez. ‘With just two straightforward evening attire preferences, we ease the stress of packing and planning, and put the focus on the excitement of the voyage ahead.’

With the new evening dress code, cruisers can expect one black-tie optional during seven- to 10-day cruises, and two on 11- to 13-day cruises. These estimates are subject to change depending on itinerary details, while world cruise, holiday sailings and ocean crossings may be scheduled differently.

The new guidelines do not apply to daytime hours. Crystal Dining Room attire is casual during the day, and those not wishing to change for the evening may opt for dining on the indoor/outdoor Lido decks. On black-tie optional evenings, jeans are not allowed in any dining venues or lounges, including the Crystal Casino.