Everyday concerns, solved with wool.

Say goodbye to those everyday discomforts.
Unmatched comfort made possible by Super100’s merino wool.

A truly premium feel shaped by Japanese craftsmanship.
Sweat, temperature swings, skin irritation—solve everyday discomfort with just this one piece.

What kind of discomfort are you feeling today?
Sticky skin from sweat, feeling cold under air conditioning, irritation on sensitive skin, and the daily stress of choosing what to wear in a busy routine…
What if there were a material that could solve all of it?
That material is the incredibly supple, everyday-friendly “Super100’s merino wool.”

Among high-quality Australian merino wool, Super100’s is an ultra-fine fiber measuring just 18.5 microns.
And when that raw wool is carefully crafted one by one by skilled artisans, the result is a Made in Japan product that brings an unprecedented level of comfort and quality to your everyday life.

Now, why not experience a new lifestyle made possible by merino wool?

Solve your concerns—with wool!

3-1. Discomfort from sweat

Discomfort from sweat

Even when you sweat, it doesn’t feel sticky—stay dry and comfortable all day.

A packed train in summer, after sports, during a nerve-racking presentation… sweat is inevitable, but the stickiness and odor afterward are unpleasant. Many synthetic fabrics don’t absorb sweat, and cotton tends to dry slowly once wet. But Super100’s merino wool is different.

Merino wool is a naturally moisture-absorbing and quick-drying fiber. Its unique structure repels liquid on the surface while absorbing water vapor inside. This helps pull moisture away from the skin and release it outward, keeping you dry and preventing that sticky feeling. In addition, it offers natural antibacterial and odor-resistant properties—so sweat odor is less of a concern.

Stay comfortably dry in any situation, all day long. No more stress from sweat-related discomfort.

3-2. Feeling unwell due to sudden temperature changes

Feeling unwell due to sudden temperature changes

From air-conditioned rooms to chilly outdoors—stay comfortable at the right temperature all year round.

Overly air-conditioned spaces in summer, highly variable spring and autumn days, and harsh winter cold… sudden temperature changes can also lead to feeling unwell. In these moments, our bodies work hard to regulate temperature, but the wrong fabric can get in the way.

Super100’s merino wool shows remarkable ability in temperature regulation. Merino fibers are naturally crimped and can hold a lot of air. That trapped air acts as natural insulation—releasing heat when it’s warm and retaining warmth when it’s cold—so it works like a second skin to help keep your body at an optimal temperature.

Comfortable in any season, and smarter for daily well-being. Feel natural warmth and coolness—anytime, anywhere.

3-3. If only there were clothing that’s gentler on my skin

If only there were clothing that’s gentler on my skin

No itchiness—just a smooth, skin-hugging feel. A meltingly soft quality that supports even sensitive skin.

When you hear “wool,” you may imagine it feels itchy. But our products are in a different class from typical wool. We use Super100’s merino wool, considered among the finest grades of wool. The fibers are extremely fine—about one-fifth the thickness of human hair (just 18.5 microns!).

These ultra-fine fibers flex gently against the skin and help prevent the fiber tips—often the cause of itchiness—from pricking the skin. The silky, melting softness—like cashmere—can be enjoyed with confidence even by those with sensitive skin.

In addition, C-one products feature care labels and brand names printed directly onto the fabric. There is none of the scratchiness or irritation that typical tags can cause. Experience a “second-skin” level of comfort—down to the smallest details.

3-4. Busy with childcare—I want to save time wherever I can

Busy with childcare—I want to save time wherever I can

A helper for busy moms and dads: stain-resistant and easy care—so you can spend more time with your kids.

Parenting is a joy—but it’s also a battle against the clock. Food spills, mud stains from playtime, and daily laundry… do you ever feel like clothing care takes up too much time and leaves you with none for yourself?

Super100’s merino wool is a strong ally for busy parents. Merino fibers have natural water repellency on the surface, making water-soluble stains less likely to soak in—many small messes can be wiped off quickly. It also offers antibacterial and odor-resistant properties and recovers well from wrinkles, which can reduce how often you need to wash and help you skip ironing.

And our products are Made in Japan. With high-quality craftsmanship, they resist losing shape even with repeated wear, so you can enjoy them for a long time. Merino wool helps you prioritize family time while staying clean and comfortable—an ideal choice for households with children.

3-5. The daily “What should I wear?” dilemma—and the time it steals

The daily “What should I wear?” dilemma

Zero time lost in front of the closet. Versatile styling with one piece—for a refined everyday look.

During busy mornings—or depending on your mood—do you find yourself unsure what to wear each day? Even with a closet full of clothes, you end up reaching for the same few… it happens to everyone. The time spent choosing outfits adds up more than you think.

Super100’s merino wool blends effortlessly into any situation thanks to its refined texture and simple design. From casual daily wear to more polished business settings, and even as a reliable piece for travel—one piece opens up many styling options. C-one also offers a wide range of colors, so you can choose what fits your style and mood, expand your combinations, and enjoy getting dressed more. Wool’s natural drape enhances your silhouette and brings a sophisticated look even to simple outfits.

Because you can do more with fewer items, your closet stays tidy. Free yourself from outfit stress and spend time on what truly matters—supporting a calmer, more spacious everyday life.

3-6. “Clothing care is a hassle / dry-cleaning costs add up”—the time and money concerns

Clothing care is a hassle

Delicate wool—surprisingly “washable at home.” Cut dry-cleaning costs and effort dramatically.

Do you think wool items must be dry-cleaned? The cost and the hassle of taking them to a shop can be a real burden on both your budget and your time. And washing at home can feel risky—shrinking or losing shape.

Rest assured. All C-one Super100’s merino wool products are washable at home. With high-quality merino wool that has undergone specialized processing and careful, detailed stitching that reflects Made in Japan craftsmanship, we greatly reduce the risk of shrinkage and deformation—whether you use a washing machine on a delicate/wool cycle or hand wash. Because merino wool is naturally antibacterial and odor-resistant, you can also wash less often. Easy home care saves you both time and dry-cleaning costs.

“I can’t believe wool can be washed this easily!”—we think you’ll be pleasantly surprised. Enjoy comfortable days with clean, fresh wool whenever you like.

3-7. Wanting a more sustainable lifestyle—environmental concerns

Wanting a more sustainable lifestyle

A choice that’s gentle on both the planet and your skin. Wool—sustainable, natural, and biodegradable.

As environmental issues become more serious, many of us look for ways to make better choices for the future. When it comes to what we wear, we want to choose items that are kind to the earth—not disposable. Do you feel the same?

C-one Super100’s merino wool products support a more sustainable life. Wool is a natural material sourced from sheep raised on water and grass, and it is biodegradable—returning to the soil at the end of its life and rejoining the natural cycle. Unlike petroleum-based synthetic fibers, there is also no need to worry about microplastics.

In addition, we print care information and brand names directly onto the fabric to reduce extra materials—an approach designed to leave nothing behind when the garment returns to the earth. And the durability that comes with Made in Japan craftsmanship means you can wear it for longer, reducing textile waste and contributing to a more sustainable society.

Gentle on your skin and gentle on the planet. C-one’s merino wool products align with your values—an intentional choice for the future.

Did you know? Wool is a remarkable natural material with possibilities beyond what you imagine.

Natural UV protection

Merino wool naturally helps block UV rays without chemical treatments such as UV absorbers. It protects delicate skin from sunlight and makes outdoor activities feel more reassuring.

Flame resistance

Wool is less likely to ignite than many other fibers, offering an added sense of security in situations involving fire. It’s also a great material for time spent near flames—such as camping and outdoor activities.

Resists stains

Its fiber surface tends to repel water, making dirt less likely to adhere. It performs well not only for everyday use, but also for travel and outdoor activities.

Why our wool: the reasons C-one is chosen

Not just wool—premium comfort and a sustainable future, crafted by C-one.

  • Premium softness: “Super100’s merino wool”

    Among Australia’s ultra-fine merino wools, we select only the rare “Super100” fibers measuring just 18.5 microns. With a meltingly smooth feel, you’ll never want to take it off once you put it on. It’s also a reassuring choice for those with sensitive skin.

  • “Made in Japan” quality, shaped by skilled craftsmanship

    To bring out the best in the material, we insist on careful stitching by skilled Japanese artisans. Our attention to detail results in garments that resist losing their shape even after repeated wear and washing—made to be enjoyed for a long time. This reliable quality supports your everyday life.

  • Washable at home—redefining what wool can be

    Wool is often thought of as delicate, but all C-one products can be cared for at home using a washing machine (delicate/wool cycle recommended) or hand washing. Free yourself from the time and cost of dry cleaning, and keep your garments clean and comfortable anytime.

  • Tag-free printed labels—gentle on skin and on the planet

    To eliminate irritation, care information and brand names are printed directly onto the fabric. This also reflects our commitment to the environment—designed to leave nothing behind when the garment returns to the soil.

From material selection to manufacturing and environmental consideration, C-one never compromises. We deliver premium quality you can feel with all five senses—and a choice you can truly stand behind.


“I can’t live without it!”—more and more happy voices. Why customers love C-one wool.

Customer Voice 1: Ms. A (30s, female)

“I was amazed at how dry it feels even during sweaty summer days. It also helps in air-conditioned offices, so I stay comfortable all day. And being able to wash it at home is the best part!”

Customer Voice 2: Mr. B (40s, male)

“I have sensitive skin and avoided wool, but C-one’s merino wool isn’t itchy at all. It actually feels like it gently clings to the skin—I want to wear it every day. I also love that it feels safe to use even when camping.”

Customer Voice 3: Ms. C (40s, female)

“I used to struggle with skin irritation from synthetic fabrics, but C-one’s merino wool is truly gentle. I was also impressed that there are no tags! It feels so good that I want to get multiple colors.”

Your questions answered: Q&A about C-one merino wool

Q1: What is Super100’s merino wool?

A: It refers to exceptionally fine merino wool from Australia with very thin fibers (18.5 microns) and outstanding softness against the skin. It is known for a smoothness often compared to cashmere.

Q2: Can I wash it at home? Will it shrink?

A: Yes. All C-one merino wool products are washable at home. If using a washing machine, choose a delicate or wool cycle and use a gentle detergent. Thanks to high-quality processing and careful Made in Japan stitching, they are designed to be resistant to shrinkage. Also, because our products are made to be worn for a long time, we set the body length slightly longer to allow for slight natural shrinkage over time with home washing.

Q3: Is it itchy? Is it okay for sensitive skin?

A: Because Super100’s merino wool fibers are ultra-fine, it has little to none of the itchiness associated with typical wool. It is very gentle on the skin and suitable for sensitive skin. In addition, care information and brand names that touch the skin are printed directly onto the fabric to thoroughly eliminate discomfort.

Q4: Can I wear it in summer?

A: Yes. Merino wool can be worn comfortably even in summer. With excellent moisture management and temperature regulation, it helps keep your skin feeling dry even when you sweat and also works well as protection against air conditioning. It’s a material you can enjoy comfortably all year round.

Q5: Any care tips?

A: Home washing is generally fine, but please avoid using a tumble dryer. We recommend reshaping and line-drying in the shade. Leaving it wet for a long time may cause shrinkage, so after washing, reshape and hang it promptly. For detailed care instructions, please refer to the wash care label provided with your product.

No more worries. A new, comfortable and refined everyday life starts today.

Sweat, skin irritation, temperature regulation, and the burden of daily chores.
C-one’s Super100’s merino wool helps solve the everyday discomforts you face and delivers comfort for both body and mind.

A world-class feel, Made in Japan craftsmanship, and a sustainable choice that’s gentle on the planet.
Why not experience comfort you’ve never felt before with C-one merino wool?

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