Enjoy the open sea in a "grown-up blazer" until the evening of the second day after boarding.

Brooks Brothers
Blazer ¥74,520, Pants ¥31,320, Shirt ¥14,040, Tie ¥12,960 ■ Isetan Shinjuku Store, Men's Building 5th Floor = Business Clothing

On the first day of the "Opera on the Sea 3 Days" cruise, the ship departs from Yokohama Port, followed by a welcome cocktail party, and in the evening, a "Gala Dinner" with a "semi-formal" dress code is held. "It's a 3-day cruise, but with dress codes set as semi-formal on the first day and formal on the second, you tend to end up with a lot of luggage, including loungewear and casual clothes. Semi-formal means a jacket and tie is fine, so Isetan Men's recommends a navy blazer with metal buttons," says the assistant buyer in charge of formal wear.

Social
Shoes ¥35,640 ■ Isetan Shinjuku Store, Men's Building 5th Floor Formal Wear

"If we were to describe formal wear using colors, one rule of thumb is to 'wear lighter colors during the day and darker colors at night.' A basic navy blazer, paired with a dress shirt with a nice collar (such as wide or semi-wide) and a tie with a beautiful color, will meet the standards of semi-formal attire—the dress code. For shoes, choose plain-toe or straight-tip black lace-up shoes. Tassel shoes are also acceptable, but please wear black shoes at night," he explained.

Brooks Brothers blazer with gold buttons can be worn in a variety of situations, from boarding the plane to the welcome cocktail party, breakfast the next morning, and relaxing on the deck. It adds a touch of elegance even to casual outfits like jeans and no tie, making it perfect for any occasion.

On the second night of NEXT, I went to see the opera "Carmen" in formal attire.