
Overview
ssstein is a Tokyo-based independent label founded by Kiichiro Asakawa in July 2016, originally under the name stein. The brand grew from carol, the multi-brand store Asakawa opened in Shibuya three months earlier after six years working in Harajuku retail. Its first products were three trouser models developed through the dismantling and reconstruction of more than 300 pairs of vintage Levi’s 501 jeans, turning shop-floor observations about fit into a systematic study of pattern, balance and movement.
Autumn/Winter 2017 expanded that experiment into a complete wardrobe, followed by formal wholesale exhibitions from Spring/Summer 2018. The mainline remains unified and unisex, spanning tailoring, outerwear, shirting, knitwear, denim and leather. Long vertical drape, dropped shoulders, layered coat structures and precise fabric behaviour give the clothing its character; scale is controlled through pattern and weight, not simple enlargement.
The label entered the Rakuten Fashion Week Tokyo runway in 2023 and adopted the ssstein spelling from Autumn/Winter 2024 as it prepared for wider international distribution. Winning the Fashion Prize of Tokyo 2025 supported its official Paris Fashion Week Men’s debut with Resonance in January 2025. Operated by encens Co., Ltd., ssstein has since expanded its overseas wholesale network while maintaining carol as a retail, showroom and testing ground for the collections.
Philosophy
Asakawa designs through the relationship between stillness and motion. A garment may appear restrained on the hanger, then reveal its logic through the way a coat falls, a shoulder drops or a trouser line shifts around the body. Classic menswear categories provide the framework, but their internal balance is repeatedly adjusted through hidden panels, reduced interlining, layered construction and carefully placed weight.
Textile development carries equal importance. Fine wool can be treated for smoothness and resistance to creasing; cotton-rayon blends are woven for slight iridescence; sulphur-dyed cloth receives hand-rubbed pigment; denim is altered through washing, airbrushing and blotting; leather is drum-dyed or rubbed with oil to produce an uneven surface. These processes give familiar garments a controlled instability and allow colour, texture and wear to register gradually.
The design process remains tied to retail observation. carol staff test samples and respond to proportion, drape and practicality before final production, extending the feedback loop that produced the first trousers. Photography by figures including Corinne Day, Mark Borthwick and Anders Edström informs atmosphere and colour, while the final clothes remain intended for repeated daily use. The result is a wardrobe shaped by technical precision, emotional restraint and the visible passage of time.
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Creative timeline
Button TextThe label changed its public styling from stein to ssstein for Autumn/Winter 2024 and entered a new international phase supported by the Fashion Prize of Tokyo. Paris presentations, wider overseas wholesale and global projects with Shiseido, Kith and Umbro followed without separating the brand into new lines.
Beginning with the Spring/Summer 2018 exhibition format, the label moved beyond carol into external wholesale while refining a unified wardrobe of vertical drape, precise tailoring and engineered textiles. The phase culminated in its first Rakuten Fashion Week Tokyo runway in 2023.
Asakawa founded carol and launched the label then known as stein in 2016. Three initial trouser models, developed through the reconstruction of more than 300 vintage Levi’s 501s, established the brand’s pattern-led approach and remain the beginning of the continuous ssstein entity.
During roughly six years at the Harajuku store Naichichi, Asakawa worked in sales and buying while teaching himself garment construction by dismantling vintage clothing and studying the relationship between internal structure, volume and fit.
ssstein structure
ssstein is organised as one mainline wardrobe rather than a set of diffusion labels. Tailoring, outerwear, knitwear, shirts, denim, leather and increasingly varied sizing are developed through the same pattern and textile system.
Mainline wardrobe
- Tailoring and outerwear
- Core clothing structure
- Coats, jackets and trousers carry the label’s most recognisable pattern work. Dropped shoulders, vertical drape, reduced interlining, layered shells and docking constructions alter familiar menswear forms without losing their everyday function.
- Shirting, knitwear and jersey
- Layering and surface categories
- Shirts, fine-gauge knits, tanks and jersey pieces supply lighter layers within the wardrobe. Fabric weight, transparency and subtle tonal shifts are used to control how these garments sit beneath or against the tailoring.
- Denim, leather and treated materials
- Material-development categories
- Denim traces the brand back to its first reconstructed Levi’s study. Later collections extend that research through ring dyeing, stone washing, airbrushing, blotting, drum-dyed deerskin and uneven oil-rubbed leather.
- Integrated sizing and womenswear development
- Mainline extension
- Smaller sizes, long skirts, fitted tanks and other feminine-leaning forms are incorporated into the mainline rather than separated into a distinct womenswear label.
Retail and operating structure
- carol
- Retail store, showroom and design incubator
- Opened in Shibuya in April 2016 and later relocated to Omotesando, carol combines multi-brand retail with ssstein’s own presentation and fitting process. The store provides direct feedback on proportion, fabric and wear before samples are finalised.
- encens Co., Ltd.
- Operating company
- encens Co., Ltd. operates the ssstein label and carol under Asakawa’s direction, linking the brand’s design, retail and wholesale functions within one closely managed structure.
ssstein collaborations and special projects
The label’s collaborations extend its pattern and textile research into uniforms, sportswear, streetwear and Japanese craft-led capsules.
- KEITAMARUYAMA × ssstein
- 30th-anniversary project, 2024
- Asakawa reconstructed a 1950s-style reversible sukajan using Keita Maruyama’s archival embroidery, heavy acetate satin and cupro velvet. Washing and pattern adjustments brought ssstein’s handling of volume to a highly decorative Japanese garment type.
- ssstein × YOKE / 1LDK / Unlimited-lounge
- Bishu textile capsule, 2024
- The partners worked with the Kuzuri Keori mill on a limited capsule in cashmere-like Bishu wool flannel, placing regional textile production at the centre of the project.
- Shiseido — KASANE
- Global uniform project, 2025
- Asakawa designed new uniforms for Shiseido Personal Beauty Partners across 90 countries. The KASANE concept uses layering, straight and curved lines and the Japanese spatial principle of ma to translate the company’s beauty philosophy into working clothing.
- Kith 101 for ssstein
- Winter capsule, 2025
- The collaboration combined ssstein’s piece-dyed Super 120s wool gabardine, Olmetex fabrics and Geelong lambswool with the proportion and utility of Kith’s 101 programme.
- ssstein × Umbro
- Sportswear capsule, 2025
- An eight-piece capsule drew on the training clothing of England’s 1966 football team, rebuilding retro sportswear through water-repellent linen-nylon, high-gauge fleece and cotton-nylon poplin.