Did you know there are many benefits to wearing a men's undershirt (undergarment) in the summer? In Japan, it's very common for men to wear an undershirt under their dress shirts regardless of the season. As summers get hotter every year and more people spend the days wearing just a shirt, the demand for undergarments that can be worn under shirts is increasing.

This time, we conducted a survey of approximately 750 people in total, including customers who visited Isetan Shinjuku Store, Men's Building , staff members of Isetan Shinjuku Store, Men's Building , and followers of Instagram ( @isetanmens ), asking about their concerns, perceptions, anxieties, and dissatisfactions regarding underwear. The results revealed that there are various concerns regarding underwear. *As of April 2021
At Isetan Shinjuku Store, Men's Building B1F, our underwear specialists will help you resolve the concerns revealed in our survey!

[Number 1 Concern] It's embarrassing when your innerwear peeks out from your neckline or sleeves.

A boat neck with a wide neckline is recommended as an inner layer to wear under a T-shirt! 

A boat neck T-shirt refers to a T-shirt with a neckline that curves along the collarbone. It's named "boat neck" because the shape of the neckline resembles the bottom of a boat. It's characterized by a wide boat neckline and short sleeves. It's recommended as an inner layer to wear under a T-shirt, even during warmer seasons.
Furthermore, the neckline, cuffs, and hem are finished with a raw edge (cut-off) that won't show through a T-shirt , giving it a clean and neat look. The material is treated to resist sweat stains and has an odor-eliminating finish to suppress unpleasant sweat odors. 

 

[Second most common problem] Wearing multiple layers of innerwear in the summer is hot and stuffy.

Get through the summer with a T-shirt made of "summer material" that feels cooler when worn with an inner layer! 

 Many people might think, "Wouldn't wearing an extra undershirt make me feel hot?" However, the Dryfeel (high-twist yarn) material has a crisp texture, and because it touches the skin less than regular materials, it feels cool and dries quickly.
Simply adding an undershirt between your skin and your T-shirt can alleviate the heat and reduce damage to the fabric. In addition to its summer-appropriate material, it also features odor-eliminating (sweat odor) and antibacterial/deodorizing treatments , and comes with underarm pads, so you can comfortably wear your favorite T-shirt while also protecting against sweat stains and odors.

[Conclusion] The benefits of wearing men's undershirts in the summer cannot be overlooked.

During the Cool Biz season, wearing a men's undershirt with a dress shirt has become quite popular to prevent sweat stains from being noticeable or nipples from showing through. Even with casual attire, wearing an undershirt not only keeps you comfortable but also prevents you from worrying about sweat stains or odors, protecting your important clothes and allowing you to wear them for longer. While SEEK undershirts are well-known for business wear, they actually have a wide range of designs, colors, and materials suitable for T-shirts and polo shirts as well.

"How to choose the right undershirt?" by our underwear buyer.

SEEK shirts featured in this article come in various colors depending on the product number, but the lineup includes "beige," which is close to skin tone; "gray," recommended for those with fair skin; and also "white" and "black." The beige is less see-through, making it popular at Isetan Shinjuku Store, Men's Building . The standard neckline design is a U-neck, suitable for short sleeves and polo shirts, but there are also boat necks and V-necks that are ideal for T-shirts, and the packaging indicates the appropriate outerwear to wear, so please refer to that.

For those trying SEEK for the first time, we recommend the classic U-neck shirt, perfect for year-round wear . It's a regular bestseller at Isetan Shinjuku Store, Men's Building . Experience the comfortable feel that won't bother you even when you sweat in the coming seasons.

At Isetan Shinjuku Store, Men's Building , we offer not only summer innerwear but also tights to wear under trousers, and in autumn and winter, we also have long-sleeved shirts and tights to suit the season.

View SEEK products at the Mitsukoshi Isetan online store.

Photograph: Natsuko Okada
Text: Mitsukoshi Isetan

Production by STUDIO ALTA

＊All prices include tax.
＊The information in this article is current as of the time of publication. Product information may be revised or changed without notice.

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