A golden rule of wearing a suit has always been that "a dress shirt is underwear, so it's dapper to wear it directly against your skin." However, in Japan's hot and humid summers, wearing an undershirt underneath is definitely more dapper. Responding to customer requests such as "Are there any comfortable undershirts for summer?" and "Are there any thinly made undershirts?", buyer Takahiro Kunitomo will guide you through "summer undershirts" that make a noticeable difference when you wear them—undershirts you won't want to let go of once you experience them.


From a woman's perspective, wearing underwear is a must as a matter of etiquette!

Cool Biz has become firmly established as a summer business style, but women's standards for how men dress are getting stricter every year. For example, "I don't like nipples showing through shirts," "Sweat stains on the back of shirts are unfashionable," and "Underarm hair showing through short-sleeved dress shirts" are certainly unacceptable for a successful businessman, and we men are well aware that these are also unacceptable manners for an adult man. Cool Biz attire should be considered not only by women, but also as a matter of etiquette when dealing with business partners. Just by wearing an undershirt, you can confidently and smartly get through the summer!


For wearing under a dress shirt, SEEK 's "beige" is highly recommended!

SEEK 's beige is a year-round bestseller. Its smooth texture makes it comfortable to wear all year round, and its lightweight and non-clingy feel are also popular features. Especially for the upcoming season, beige is recommended because it's virtually invisible when worn under a white dress shirt.


SEEK T-shirt: ¥3,024 (S-L), ¥3,564 (LL) View product

The design features a seamless cut-off (raw edge) finish at the collar, cuffs, and hem, making it less likely for underwear lines to show through and allowing for a clean look when wearing shirts. Additionally, the deep neckline prevents underwear from peeking out from under shirts worn with the collar open. It's available in a wide range of sizes from S to LL.


If you dislike synthetic fibers and want to wear something cool and comfortable made of cotton, then ASAMERRY is the place for you.

For those who appreciate the unique texture of cotton, we recommend Asamery, a 100% cotton "cooling innerwear." By specially twisting carefully selected high-quality Egyptian cotton, it achieves a unique crispness and suppleness for comfortable wear. It doesn't stick to the skin and feels smooth to the touch.

Asamery T-shirt: 3,240 yen (M-L)

Furthermore, the fabric has a cooling effect, so the moment you put it on, it feels pleasantly cool against your skin, which is another reason why you won't want to take it off. The slim silhouette doesn't feel bulky, and the sleeves are short, so it can be worn under short-sleeved polo shirts and other similar garments.


For those who get hot easily, ISETAN MEN'S is recommended.

ISETAN MEN'S offers a cooling undershirt with a cut-off design and short sleeves that combines the best features of an inner shirt for summer. The highly moisture-wicking material quickly absorbs sweat. Furthermore, the use of micromodal makes it soft, smooth, and comfortable against the skin, while also providing a cooling sensation for a refreshingly cool wearing experience.


ISETAN MEN'S T-shirt ¥3,780 (M-L) View product

Furthermore, the cut-off design prevents underwear lines from showing through, and the short sleeves make it a versatile piece that can be worn as an inner layer under T-shirts or polo shirts. Please experience the superior feel of the material.

In Part 2, we'll introduce essential summer underwear for combating sweat and odor.

*All prices include tax.

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inquiry
Isetan Shinjuku Store, Men's Building , B1F = Underwear, Nightwear, Socks
03-3352-1111 (main representative)