A remarkable material gifted by nature.
Wool is born from nature’s blessings — sunlight, water, grass, and fresh air. A 100% natural, renewable fiber, and one of the most sustainable materials on earth.
Shop by Category
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All merino wool products
This is the “All Items” collection, where you can view the full...
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Merino wool long-sleeve T-shirt collection
C-oneの定番アイテム、上質なメリノウールを使用した長袖Tシャツコレクションです。 繊細で柔らかな肌触りながら、洗濯機で洗えるイージーケアを実現しました。天然素材ならではの調温性と防臭性に優れているため、秋冬のインナーとして、あるいは春・秋の一枚着として最適な高機能アイテムです。
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Merino wool haori outerwear collection
C-oneの新しい提案、メリノウールを使用したHaori(羽織りもの)コレクションです。 すっきりしたシルエットで、シャツやTシャツの上に気軽に重ねられるライトアウターとして活躍します。上質なメリノウールが、室内での温度調節や、季節の変わり目の羽織りとして高い機能性を発揮します。
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High-performance merino wool sweatshirt collection
This is C-one’s high-performance merino wool sweatshirt collection, developed to redefine conventional...
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Merino wool short-sleeve T-shirt & polo collection
C-oneのメリノウール製品の中から、半袖Tシャツ、ポロシャツなど、夏の装いに最適なアイテムを集めたコレクションです。 厳選されたウールが持つ優れた吸湿速乾性と調温性により、汗ばむ季節でも快適な状態を維持します。また、天然の防臭効果で、暑い日やアクティブなシーンでも安心して着用いただけます。
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Merino wool women’s design collection
メリノウールを贅沢に使用した、C-oneのレディースコレクションです。 繊細な素材の良さを活かし、女性の体に美しく沿う立体的なシルエットを追求しました。カジュアルにも、ビジネスにも対応できるフェミニンで洗練されたデザインが特徴です。
C-one Merino Wool Design Comparison Guide
▼Explore the details and craftsmanship behind each design.
C-one Merino Wool Size Guide
▼Find the perfect fit for you.
Seasonal Recommendations
Long sleeves chosen for winter mornings.
Designed to retain warmth with a quietly comfortable fit around the shoulders.
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Unisex Merino Wool Sweat Pullover
Regular price 36,300 円Regular priceSale price 36,300 円 -
Unisex C BASIC Merino Wool T-Shirt
Regular price 13,200 円Regular priceSale price 13,200 円 -
Unisex Merino Wool Shawl Collar Cardigan
Regular price 25,300 円Regular priceSale price 25,300 円 -
Unisex Merino Wool Mock Neck Long Sleeve T-Shirt
Regular price 17,600 円Regular priceSale price 17,600 円 -
Unisex Merino Wool Sweat Hoodie
Regular price 39,600 円Regular priceSale price 39,600 円
Shop by Series
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C BASIC series
C-oneの核となるラインナップ、C-BASICコレクションです。 究極の定番を目指し、装飾をそぎ落としたミニマルなデザインと、最高品質のメリノウールによる機能性を両立させました。どんなコーディネートにも合わせやすく、長く愛用できる普遍的なアイテムのみを集めています。
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C FLEX series
肩に縫い目がなく袖と後ろ身頃が一体成型された設計。自然な肩落ちと動きやすさが特徴で、登山やアクティブな日にも快適です。ポロシャツやカーディガンも同じ設計思想で展開しています。
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C HIGH END series
ジャケットの下に着ることを前提に設計されたシリーズ。衿元や袖の収まりにこだわり、品よく装える印象です。半袖・長袖ともに展開しており、袖丈や袖幅はアイテムによって異なります。
C-one Merino Wool Design Comparison Guide
▼Explore the details and craftsmanship behind each design.
C-one Merino Wool Size Guide
▼Find the perfect fit for you.
The C-one Story — Where Authentic Craft Begins
At C-one, our goal is to bring a sense of genuine comfort to everyday life. We pursue the finest Super 100’s merino wool and the exceptional craftsmanship of Japan.
From careful material selection to thoughtful manufacturing, and delivering our products directly at honest prices — everything we do is for creating garments you can cherish for years.
We invite you to discover the philosophy behind C-one.
By combining jersey fabrics with wool, we create a synergy that enhances comfort and performance.
Creating the finest garments is our mission.
C-one Journal
View allWhy Choose C-one? Frequently Asked Questions
Does merino wool feel itchy? I’m concerned about skin comfort.
C-one T-shirts are made exclusively from carefully selected Super 100’s merino wool. Compared to ordinary wool, the fibers are extremely fine, creating a smooth, cashmere-like softness.
The typical itchiness associated with wool is minimal, and even those with sensitive skin often find it comfortable to wear. Please note, however, that individual sensitivity may vary.
Can I wash it at home?
Yes, our garments are easy to care for at home. When using a washing machine, we recommend selecting a “wool” or “delicate” cycle and placing the item in a laundry net. Please use a neutral detergent and avoid using a dryer. After washing, reshape the garment and lay it flat to dry.
Is it durable enough for long-term wear?
C-one T-shirts are designed not only for beauty, but for lasting wear. In addition to the natural elasticity of Super 100’s merino wool, our garments are carefully sewn by skilled Japanese craftsmen, resulting in a refined finish that resists losing its shape. With proper care, you can enjoy long-lasting comfort for many years.
Why are your products reasonably priced despite their high quality?
Our goal is to deliver the finest Super 100’s merino wool and Japanese craftsmanship to as many people as possible. By adopting a direct-to-consumer (DTC) model, we eliminate unnecessary costs by cutting out intermediaries. This allows us to offer honest pricing while delivering genuine quality directly to our customers.




