Stylist Mami Saito × mi-mollet STORE First Collaboration! "Wearable in Town" Adult Rash Guard Shirt Pre-released. UV Cut, Quick-Drying, Washable, Matching Short Pants Also Available.
mi-mollet STORE, operated by Kodansha, has collaborated with stylist Mami Saito's beachwear brand "Leim" to pre-release an adult rash guard shirt and matching short pants that can be worn both at the beach and in town. It features UV cut, quick-drying, washable properties, and is made from eco-friendly recycled polyester.
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- 📰 Published: May 11, 2026 at 17:00
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mi-mollet STORE, operated by Kodansha Co., Ltd. (Headquarters: Bunkyo-ku, Tokyo), has partnered with stylist Mami Saito's beachwear brand "Leim" for their first collaboration. They are pre-selling an adult rash guard shirt that can be worn both at the beach and in town. This product features UV cut, quick-drying, washable properties, and a wrinkle-resistant fabric, making it suitable for everyday use. Matching short pants made from the same material are also available.
Leim Rash Shirt, Short Pants
"Leim," created by stylist Mami Saito, proposes beachwear that adult women can easily incorporate into their daily lives. For this collaboration, the rash guard was re-designed not just as "water-only" wear, but as a "shirt wearable in town."
It achieves both functionality for layering over swimwear and a design that feels natural for urban use.
Two Colors, White & Black, Pursuing "Ease of Use"
The shirt comes in two colors, white and black, which are easy to incorporate into any style. The non-sheer white allows you to wear it alone without worrying about innerwear. The nuanced, soft black appears light both by the water and in town, blending well with spring and summer.
Environmentally Friendly and High-Functioning Recycled Polyester Used
The material used is eco-friendly recycled polyester. While offering a cotton-like texture that blends with urban settings, it is wrinkle-resistant, stretchy, UV cut, washable, and quick-drying, excelling in functionality.
Utilizing fabric equivalent to about 1.5 standard shirts, it creates a dramatic silhouette when simply slipped on.
The buttons can be fastened in different ways to arrange it as a cache-coeur. Mami Saito's attention to detail ensures it looks effortlessly chic.
Matching Short Pants Available for a Set-Up Look
Matching short pants made from the same material are also available for a set-up. These are offered in black only.
The waist features a stress-free elastic design, yet the front is intentionally designed to resemble a zipper, adding a touch of neatness to a simple silhouette.
Made from UV-cut and water-repellent material, their lightness makes them attractive for wearing directly over swimwear.
Mami Saito's White Shirt Styling
Classic Way to Wear: Cache-coeur with Black Pants
The classic urban style for the white shirt is to wear it as a cache-coeur paired with black pants.
If tucking it in, wear it with wide-leg pants or skirts; if wearing it out, pairing it with cigarette pants creates a balanced look and is recommended for covering the hip line.
In mid-summer, simply layering it over a tank top creates a complete style and can be used for sun protection or as an air-conditioning shield during summer outings.
At the Beach: Layer Over a Swimsuit
Wearing it as a cache-coeur with rolled-up sleeves creates a sophisticated beach style suitable for adults.
The length feels like a mini-dress, making it comfortable to walk by the beachside without feeling out of place. With bottoms, you can head straight into town.
It is quick-drying and wrinkle-resistant even when wet or folded in a bag, making it easy to use for travel and resort stays.
Mami Saito's Black Shirt Styling
Black Shirt: The Key is "Subtle Skin Exposure"
My go-to style for the black shirt is minimalist, pairing it with blue denim.
The design allows for two buttons to be unfastened without revealing too much, achieving a moderate décolletage exposure suitable for adults.
When wearing an all-black look with black pants, you can show off your ankles with cigarette pants or pair it with mules or low-heeled pumps to enjoy a light urban style.
Set-Up with Matching Short Pants for Beach or Town
It is also recommended to wear it as a black set-up with matching short pants. The all-black top and bottom create a chic, masculine look that isn't too casual for the beach.
By changing accessories, it easily blends into urban settings, offering versatility from resort wear to town use. It can even handle light rain, and minor mud splashes wipe off easily, making it useful as light outerwear during the rainy season.
《Product Information》
mi-mollet Pre-sale Leim Rash Shirt ＜White／Black＞
Selling Price: ¥28,600 (tax included)
Size: FREE (Length: 81.5cm, Shoulder Width: 59.5cm, Body Width: 69.5cm, Sleeve Length: 59cm)
Material: Recycled Polyester (Typewriter Stretch)
Washing Method: Hand washable
▶Purchase here:
https://k2cstore.com/collections/
Keywords:
Leim Rash Shirt, Short Pants
"Leim," created by stylist Mami Saito, proposes beachwear that adult women can easily incorporate into their daily lives. For this collaboration, the rash guard was re-designed not just as "water-only" wear, but as a "shirt wearable in town."
It achieves both functionality for layering over swimwear and a design that feels natural for urban use.
Two Colors, White & Black, Pursuing "Ease of Use"
The shirt comes in two colors, white and black, which are easy to incorporate into any style. The non-sheer white allows you to wear it alone without worrying about innerwear. The nuanced, soft black appears light both by the water and in town, blending well with spring and summer.
Environmentally Friendly and High-Functioning Recycled Polyester Used
The material used is eco-friendly recycled polyester. While offering a cotton-like texture that blends with urban settings, it is wrinkle-resistant, stretchy, UV cut, washable, and quick-drying, excelling in functionality.
Utilizing fabric equivalent to about 1.5 standard shirts, it creates a dramatic silhouette when simply slipped on.
The buttons can be fastened in different ways to arrange it as a cache-coeur. Mami Saito's attention to detail ensures it looks effortlessly chic.
Matching Short Pants Available for a Set-Up Look
Matching short pants made from the same material are also available for a set-up. These are offered in black only.
The waist features a stress-free elastic design, yet the front is intentionally designed to resemble a zipper, adding a touch of neatness to a simple silhouette.
Made from UV-cut and water-repellent material, their lightness makes them attractive for wearing directly over swimwear.
Mami Saito's White Shirt Styling
Classic Way to Wear: Cache-coeur with Black Pants
The classic urban style for the white shirt is to wear it as a cache-coeur paired with black pants.
If tucking it in, wear it with wide-leg pants or skirts; if wearing it out, pairing it with cigarette pants creates a balanced look and is recommended for covering the hip line.
In mid-summer, simply layering it over a tank top creates a complete style and can be used for sun protection or as an air-conditioning shield during summer outings.
At the Beach: Layer Over a Swimsuit
Wearing it as a cache-coeur with rolled-up sleeves creates a sophisticated beach style suitable for adults.
The length feels like a mini-dress, making it comfortable to walk by the beachside without feeling out of place. With bottoms, you can head straight into town.
It is quick-drying and wrinkle-resistant even when wet or folded in a bag, making it easy to use for travel and resort stays.
Mami Saito's Black Shirt Styling
Black Shirt: The Key is "Subtle Skin Exposure"
My go-to style for the black shirt is minimalist, pairing it with blue denim.
The design allows for two buttons to be unfastened without revealing too much, achieving a moderate décolletage exposure suitable for adults.
When wearing an all-black look with black pants, you can show off your ankles with cigarette pants or pair it with mules or low-heeled pumps to enjoy a light urban style.
Set-Up with Matching Short Pants for Beach or Town
It is also recommended to wear it as a black set-up with matching short pants. The all-black top and bottom create a chic, masculine look that isn't too casual for the beach.
By changing accessories, it easily blends into urban settings, offering versatility from resort wear to town use. It can even handle light rain, and minor mud splashes wipe off easily, making it useful as light outerwear during the rainy season.
《Product Information》
mi-mollet Pre-sale Leim Rash Shirt ＜White／Black＞
Selling Price: ¥28,600 (tax included)
Size: FREE (Length: 81.5cm, Shoulder Width: 59.5cm, Body Width: 69.5cm, Sleeve Length: 59cm)
Material: Recycled Polyester (Typewriter Stretch)
Washing Method: Hand washable
▶Purchase here:
https://k2cstore.com/collections/
Keywords: