
A refined essential for everyday life.
Merino Wool Mock Neck Long Sleeve T-Shirt
A perfect balance of a sophisticated mock neck and exceptional softness.
An ultimate essential that elevates both your style and daily comfort.
Super100’s Merino Wool: 6 Essential Functions
The exceptional material shared by all C-one T-shirts: Super100’s merino wool. One piece that quietly transforms your everyday life.
Do these sound familiar?
“Wool feels itchy.”
“Sweat causes discomfort and odor.”
“Premium clothes seem hard to care for.”
C-one’s Super100’s merino wool solves all of these concerns.
A refined essential for everyday life.
This long-sleeve wool T-shirt features a clean and elegant mock neck design. Made from premium Japanese Super100’s fine merino wool, it offers a cashmere-like softness and a calm, refined appearance. From business layering to casual styling, it is the ultimate wardrobe essential that enhances your presence effortlessly.
Designer’s Focus: Functional Beauty in Every Detail
Every C-one T-shirt is designed with care, where even unseen details reflect our philosophy of comfort, durability, and elegance.
01. Carefully balanced mock neck
Designed to avoid pressure around the neck, while offering slightly higher coverage. It protects jackets from friction and dirt, reducing cleaning frequency, while remaining exceptionally comfortable.
02. Structured silhouette without bulk
Ribbed cuffs and hem create a refined silhouette that fits naturally. Even when layered under jackets, it avoids bunching and maintains its shape, wash after wash.
Merino Wool Mock Neck: Crafted with C-one Precision
From material selection to sewing techniques, every step is executed without compromise.
01. Premium Material
Super100’s merino wool drapes beautifully without clinging to the body. Elegant yet relaxed, it pairs effortlessly with any bottom.
02. Made in Japan craftsmanship
Carefully knitted and sewn by skilled Japanese artisans, ensuring durability and lasting beauty even after repeated wear.
03. Honest Pricing
By working directly with trusted domestic factories, we eliminate unnecessary costs and deliver true quality at a fair price.
Staff Styling: How It Fits Into Everyday Life
Looking for styling inspiration?
Here are real outfits worn by our team, including height and size references, to help you choose with confidence.
Gina / Height: 155cm
Wearing size: S
The mock neck feels gentle on the skin and remains comfortable all day. It looks elegant while still being easy to wear.
Tei / Height: 168cm
Wearing size: M
The neck height is perfectly balanced and doesn’t make the neck look short. Ideal for autumn and winter layering.
Jimmy / Height: 170cm
Wearing size: L
Relaxed fit with a refined silhouette. The cuffs hold their shape well and feel secure.
YK / Height: 155cm
Wearing size: S
Perfect as an inner layer for chilly weather or winter travel. Keeps the neck warm without feeling heavy.
Gina / Height: 155cm
Wearing size: S
The smooth texture and subtle sheen make it suitable even for more polished outfits.
Size Guide & Care Instructions
Size Guide
| Size | Length | Chest | Shoulder | Sleeve |
|---|---|---|---|---|
| S | 65cm | 91cm | 40cm | 55cm |
| M | 69cm | 105cm | 46cm | 60cm |
| L | 73cm | 113cm | 48cm | 61cm |
| LL | 76cm | 119cm | 50cm | 62cm |
* Measurements are taken flat. Minor variations may occur.
We recommend comparing with a T-shirt you already own.
Care Instructions
C-one’s merino wool is designed for easy home care despite its premium quality. With proper care, it will maintain its comfort and appearance for years.