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Textbook of beautiful summer casual wear, “Recommended staples and examples of men’s coordination.”

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  • Published: 2022-07-01 Last Updated: 2025-07-19
Textbook of beautiful summer casual wear, "Recommended staples and examples of men's coordination."

Everyone has probably heard the term “Kirei Casual” at least once. However, there must be many people who do not clearly understand the definition of the term or do not know how to actually put it into practice. In this issue, we will introduce the definition, recommended standard items, and examples of coordination using these items under the theme of “beautiful casual style for summer.

Adults' everyday wear with an awareness of elegance and cleanliness

Kirei-me casual” is a style that incorporates clean and classy items based on relaxed everyday wear. It is an outfit that should be worn on important private occasions such as dates or when meeting an important person. Typical examples of summer clean casual wear include the combination of a white shirt, jeans, and loafers, or a white T-shirt, slacks, and sneakers.

Editor Irie
The term “dress casual” is often confused with “kirei-me casual,” but the two differ in terms of their stylistic origins and assumed situations. While “Kirei-me casual” is the vector of “adding elegance to everyday wear,” “dress casual” is the vector of “casualizing down formal wear. Both styles are positioned between casual and dress, and although they may reach a similar destination, their starting points are opposite.

Summer clean casual staples and coordination examples 1Fresh and sophisticated summer style with a simple white shirt

In a clean casual coordinate, a white shirt is the key to a good look. A plain white shirt is a must-have, as it will lead your outfit in a beautiful direction no matter what kind of pants and shoes you wear with it. If you are looking for a reasonably priced shirt, check out MUJI andUNIQLO, which offer white shirts for around 3,000 to 4,000 yen that are perfect for beautiful casual wear.

Editor Irie
The quality of the white shirts developed by reasonable brands has been increasing over the years, and they are cosmetically excellent, but if you are looking for a white shirt that is a few ranks above that, we recommend the Gentleman’s Project ” BARON. Since highly breathable oxford material is used, it can be worn comfortably even in summer. Also, it has a washed finish, so a few wrinkles don’t require ironing.

Click here for more details and purchase ” BARON

In a beautiful casual summer look, a white shirt can give a completely different impression depending on the pants you wear with it. The man in the second photo in the gallery wears blue jeans, which gives a slightly rough look in a clean casual coordinate, while the man in the fourth photo wears a white shirt in a monotone coordinate, which creates an urban atmosphere. In addition, white shirts can be worn alone, or if you are worried about sweat stains, you can enjoy layering with a tank top or lightweight T-shirt as an inner layer.

Timeless classic polo shirt for an elegant and sporty look

Polo shirts not only add a classy look to your coordination, but also give it a sporty vibe. As with white shirts, you should check out products from reasonably priced brands as well as timeless classics such as Lacoste ‘s ” L1212,” Fred Perry’s ” M3600,” and Ralph Lauren’s ” classic with a polo pony.

Editor Irie
All of the aforementioned standard polo shirts are made of the same material, but if you choose a knit polo, you can create an even more graceful atmosphere that only an adult can achieve. For those who are looking for such an outfit, we recommend the John Smedley ” ISIS.

Click here for more details and purchase ” ISIS “.

Polo shirts are attractive in that they can create a sporty atmosphere without sacrificing elegance, and they go great with sneakers. The fourth man’s all-navy coordinate with slip-on sneakers is a noble and sporty outfit that makes full use of the polo shirt’s unique characteristics.

”Summer”A

In a clean casual coordinate, it is important to choose a piece with dressy elements if you want to take your white T-shirt coordinate up a notch. LEO SNUG ” sold by Gentleman Project is a just-fit piece of material with a shiny and elegant look. You can achieve a graceful T-shirt coordinate.[/speech_bubble]

Click here for more details and purchase ” LEO SNUG


When incorporating a white T-shirt into a beautiful casual coordinate, be careful not to make it look too rough. Matching it with blue jeans or shorts may give too strong an impression of roughness and go out of the scope of “beautiful. By pairing it with a pair of chino pants, slacks, or other pants with a sense of neatness, as shown in the men’s gallery below, you can achieve a beautiful casual summer look that makes the most of the clean look of the white T-shirt.

Summer clean casual staples and coordination Case 4Create a dressy mood from the feet up with slacks

Slacks are the essential pants for a beautiful casual coordinate. When incorporating slacks into a summer coordinate, choose a pair made of breathable and lightweight materials such as summer wool, high-twist cotton, or linen. In terms of length, choose a length between 3/4 and 9/4 length for a sleek look, or a half to one cushion length for a more trendy look. UNIQLO’s ” Impression Pants ” come in three different lengths, so you can easily get a pair of pants in the length you prefer. If you don’t have a pair of slacks for everyday use, you can try suit slacks.

Editor Irie
If you want to take your summer clean casual coordinate with slacks up a notch, we recommend the Gentleman’s Project “150. Made of high-density gabardine fabric with high-quality wool, this pair of slacks can be worn with any top to create a beautiful atmosphere. The modern straight silhouette also gives it a trendy look. The “permanent press process” is applied to keep the center press in place, so you can maintain the dignified look of a dress style without ironing.

Click here for more details and purchase of “150

These slacks, with their dressy appearance, will lead any coordinate to a beautiful impression. The men in the gallery below have a patterned shirt with a strong casual element on top, but the slacks are worn with the pants to create a beautiful casual coordinate. Slacks in black, navy, beige, and other classic men’s fashion colors can be worn with almost any top.

A summer staple for beautiful casual wear and Cordage Example 5Loafers in a casual coordinate to give a beautiful impression

Loafers are a typical example of shoes that go well with a beautiful casual coordinate. They are a shoe that falls right in between dress and casual shoes, so they fit in with casual coordinates without any discomfort, but also give a beautiful impression. We recommend the coin loafer for those who seek a casual taste, the tassel loafer for those who want to emphasize a dressy style, and the vamp loafer for those who prefer a minimalist design.

Editor Irie
The recent price hike of leather shoes is so great that it’s hard to get your hands on them. On the other hand, you don’t want to end up with inexpensive loafers that look like the feet of a high school student… For those people, I recommend REGAL Shoe & Co. “Men’s Classic Loafers. “REGAL Shoe & Co.” is a line of shoes that reinterprets REGAL’s long history, quality, and design in a modern way. This model here is a pair of archival shoes produced in the U.S. in the 1960s, modified to modern specifications. The loafer is a perfect match for the adult style of the REGAL loafer.

In a beautiful casual coordinate with loafers on the feet, an important point that tends to be overlooked is the type of socks to match. Loafers are best worn with cover socks that give the appearance of bare feet, as in the case of the man in the first gallery, or with crew socks that reach down to the calf, as the man in the second gallery wears. Ankle-length ankle socks are a mismatch and are not appropriate.

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