Sponsored by
Use a polo shirt as innerwear for a cool biz suit style
Polo shirts are allowed to be worn during the Super Cool Biz season. While a single polo shirt may give the impression of being too sporty, it can be worn with a suit for an elegant look. If you wear it buttoned up like the gentleman below, you can complete a Cool Biz suit style with an air of sincerity. Sneakers can be worn on the feet to complete the look.
Add a touch of seasonality to a summer suit coordinate with an earth-colored polo insert
A polo shirt in earth colors that exudes masculinity can be worn as a suit innerwear for a trend-conscious summer coordinate. It is interesting to note that even the standard navy suit style can be given a fresh impression by simply using a different innerwear.
Brown is definitely the suit color of the season! Benedito de Petrillo even uses brown accessories.
Brown” is the color of suits that is attracting particular attention this season compared to previous years, with many dress brands offering it and the number of orders at department stores rising steadily. As if symbolizing such a trend, Benedito De Petrillo, director of De Petrillo, which celebrates its 10th anniversary in 2019, participated in the most recent Pitti show by wearing brown from the suit to the tie, socks, and shoes. If you are looking to add a trendy touch to your dress style this season, we encourage you to try brown items.
![Suit & Sneaker Wear Guide. 3 principles and examples of men’s coordination without fail [ 2025 latest ].](https://otokomaeken.com/wp-content/uploads/2020/07/03b4c9f3f4bc613d0b1147ccd6821424f8add866ea336f963f056cbfb2d2fb87-630x331.jpg)
![Casual suit men’s coordination [ examples of three-directional outfits & recommendations ].](https://otokomaeken.com/wp-content/uploads/2025/07/a11b4bb3ba448d1fa402ac3dc62cc91f-3-630x331.jpg)
![How to Wear a Brown Suit in Style [ 2021 Newest ].](https://otokomaeken.com/wp-content/uploads/2019/04/a-1-630x331.jpg)
![How to Wear a Gray Suit in Style [ 2025 Latest ].](https://otokomaeken.com/wp-content/uploads/2025/05/900c8292b914d56ce29033479c256d2c1928b24b82f84b40e72a3ce9a2d08a30-630x331.jpg)
