2025.09.26

Stay Refreshingly Cool and Sun-Protected! The Blockbuster Innerwear 'Cho-Reikan AIR,' Born From the Voices of Nissen Employees.

#Nissen

#Innerwear

#Material

#Underwear

#Contact Cooling

#Functional Innerwear

#Heat Countermeasures

*The text-to-speech feature is generated by AI,
so there may be errors in the reading.

Copied to Clipboard

*The text-to-speech feature is generated by AI,
so there may be errors in the reading.

The 'Cho-Reikan' series, developed by Nissen Holdings Co., Ltd., is the coolest-feeling innerwear in the company's lineup. It has captivated many people since its debut, and with total series sales surpassing 950,000 units since its 2018 launch, it has become a certified blockbuster.

How was this garment, which shatters the conventional wisdom of 'cool-touch' clothing, created? The story behind it involves the desperate plea of a single employee standing under the scorching sun and a unique technology that doesn't lose its effectiveness even after repeated washing. We sat down with Ai Ikeuchi and Miyuki Suda from the 'Cho-Reikan' series development team to hear more.

Innerwear in Pursuit of an 'Instantly and Decidedly Cool' Sensation

'Cho-Reikan' first hit the market in 2018, a time of relentless heat when the term 'extreme heat' began to feel all too real. To survive the increasingly brutal summers, the team realized the need for an innerwear that delivered an 'instantly and decidedly cool' feeling, which sparked its development.