Developed yarn and fabric from scratch
in pursuit of ultimate cooling

We developed an ultra-fine yarn composed of approximately 100 fibers, with a cooling nylon core and an even more cooling polyethylene exterior. This ultra-fine yarn was then woven together with nylon and polyurethane yarns using a special technique.

W-Cooling Technology: Contact Cooling

Instant coolness upon wearing
Supreme contact cooling

260% cooling effect! Using our proprietary cooling fiber, it achieves a top-level contact cooling value of 0.524, delivering ultimate coolness.

*Contact cooling (q-max: W/cm²) value is approximately 260% of the standard 0.2

W-Cooling Technology: Moisture-Wicking Cooling

Up to -7.7℃ from sleep humidity
Ultimate moisture-wicking cooling

Uses a special material that cools down when it absorbs moisture and sweat generated during sleep. Effectively maintains a cool feeling until morning. The cooling function was confirmed to be retained even after 50 washes.

In experiments, a subject wearing sleepwear was sprayed with mist to simulate sweating, and the surface temperature was measured with a thermography. The temperature reached 26.3℃, which is the ideal sleeping environment temperature.
(60 sprays of mist, approx. 6.5g of water)

Absorbs moisture and
effectively converts it into cooling sensation

An innovative technology that provides a cooling sensation while eliminating stuffiness, keeping you comfortable while you sleep. In experiments, we confirmed a decrease in water temperature when a moisture-absorbing ingredient was added to the water on the right side.

Because you wear it every day,
always keep it clean with anti-bacterial and deodorizing treatment

The fabric is treated with an anti-bacterial and deodorizing finish to prevent the growth of bacteria in summer.

High efficacy and wash durability

It has 2.5 times the effectiveness of the antibacterial and deodorizing standard (antibacterial activity value 2.2), and its effect remains unchanged even after 10 washes.

Two-layer fabric for stress-free comfort

The inner surface is smooth and gentle on the skin, and is made of a water-absorbing and diffusing cooling fabric. The outer surface is made of 100% cotton with high moisture absorption, designed to be gentle on the skin and effectively disperse stuffiness. It is said that people sweat over 500ml during summer sleep, but with highly water-absorbing and diffusing fabric, you can sleep comfortably.

Eliminate uncomfortable stuffiness during sleep

By combining highly absorbent and moisture-wicking materials, this product absorbs and releases moisture, which is the biggest enemy of sleep disturbance, and effectively regulates humidity, keeping you comfortable even when you sweat.

Designed not to constrict the body,
making sleep comfortable

This sleepwear is designed to reduce stress by keeping a comfortable range of motion, with larger armholes and eliminating excessive constriction from elastic or ribbing, ensuring comfort during pre-sleep relaxation and not hindering tossing and turning during sleep.

By strengthening the neckline, it prevents shape loss and stretching, maintaining a neat neckline.

The hem of the T-shirt has a gentle curve, and both sides have slits, creating a refreshing look.

Opaque and resistant to sweat stains, even when worn alone

Thanks to the two-layer fabric design, it is opaque and resistant to sweat stains even when worn alone, making it easy to wear and perfect for quick outings.

Sweat Stain Experiment

Even when water was sprayed on the back side, simulating sweat, no stains appeared on the front side.