A Refined Essential for Everyday Life.

Designed with business and formal settings in mind, this piece works perfectly as an inner layer under jackets. The shoulder width is intentionally set slightly narrow, and excess room around the armholes is eliminated, ensuring a clean fit with no bulk or stress around the shoulders and sleeves when wearing outerwear.

Designer’s Commitment

C-one’s T-shirts are not just garments. To bring comfort and refinement into everyday life, the designer’s passion and philosophy are embedded in every unseen detail.

01. An Elegant Casual T-Shirt for Adults

By carefully adjusting the balance of ease between the front and back, the neckline achieves an exquisite openness. Combined with the softness of the material, it creates a graceful drape, resulting in a refined and feminine design that feels both relaxed and elegant.

02. A Beautiful Silhouette That Stands on Its Own

By shifting the shoulder seam slightly toward the back, the shoulder line gains a natural roundness that blends smoothly with the body. The line from neckline to sleeve appears clean and elegant. Thanks to the subtle sheen and flowing drape of the fabric, this piece elevates your style effortlessly in both on- and off-duty settings.

Merino Wool Bottle Neck Long Sleeve T-Shirt: C-one’s Attention to Detail

From material selection to sewing techniques, no compromises are made. This is a piece designed to inspire satisfaction every time you wear it.

01. Premium Materials

The natural suppleness of Super100’s Merino Wool combined with C-one’s original pattern design. It creates a beautiful, fluid drape without clinging to the body. Casual yet refined, it enhances an adult sense of elegance and pairs effortlessly with any bottoms.

02. Expert Craftsmanship Made in Japan

To maximize the delicate characteristics of Super100’s Merino Wool, C-one relies on the expertise of skilled Japanese artisans for knitting and sewing. Craftsmanship hidden in the details ensures both a refined appearance and durability that resists losing shape even after repeated wear and washing.

03. Honest Pricing

By working directly with trusted domestic factories and eliminating intermediaries, C-one maintains strict quality control and fine-tuned specifications. This approach allows us to offer uncompromising quality at a fair price. We aim to deliver true value — not just in appearance, but in the comfort and satisfaction felt through continued wear.

Size Guide & Care Instructions

Care Instructions

C-one’s Super100’s Merino Wool is designed to be high-quality yet easy to care for at home. With proper maintenance, it can be enjoyed for many years.