SINCE 1879

TOYOBOSHI is one of the most reputable spinning companies in Japan and is the successor to Kuwanohara Spinning Factory—the birthplace of Japan’s fiber industry—which was founded in 1879. The company has been in business for more than 145 years, making it one of the oldest spinning companies in Japan. In 1930, it was the first in Japan to begin producing high-quality cashmere yarns, a tradition it has continued for more than 95 years. Skilled artisans craft these yarns—which are all proudly made in Japan—upholding their long-standing legacy as they continue to produce some of the best fibers in the world.

About TOYOBOSHI

Baby Cashmere

中国内蒙古自治区東部

At TOYOBOSHI, we define “baby cashmere” as the specially processed downy wool from kids that have not experienced winter since being born, primarily those younger than six months old.

Alashan Cashmere

中国内蒙古自治区阿拉善盟

Alashan is both the name of a region and a type of cashmere goat raised in the Alxa League of China’s Inner Mongolia Autonomous Region. This particular breed has long been celebrated for producing some of the finest and most luxurious cashmere in all of China.

Cashmere

中国内蒙古自治区

Cashmere fiber is the downy undercoat of the cashmere goat (Capra hircus laniger), raised in the inland highlands and mountainous regions of Asia, where seasonal temperature differences are extreme.

Wool

Merino Wool

Merino Wool: The Premier Wool for Clothing

Silk

Proprietary Protein Coating Technology 「MAYUCA」

TOYOBOSHI’s unique MAYUCA protein coating technology

Blended Yarns

Cashmere / Wool / Silk / etc..

Blended yarns are created by spinning together two or more different types of fibers.

Procurement of Cashmere Materials

TOYOBOSHI’s cashmere yarns begin with the careful sourcing of raw materials. Leveraging long-standing relationships with production regions in China, we combine an expert eye for identifying the finest fibers with an extensive network to procure top-quality cashmere directly. Through our unique procurement channels—developed over many years and focused on local dehairing plants where we provide technical guidance—we are able to select only the most consistent and highest-quality dehaired cashmere. While raw cashmere prices can fluctuate significantly, our year-round purchasing strategy ensures reliable access to stable raw materials of consistent quality, quantity, and pricing.

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Yarns Collection

What Does TOYOBOSHI Consider High-Quality Yarn?
At TOYOBOSHI, we recognize that there are many criteria for what makes “good yarn.” In finished products, it means yarn that maintains its shape, resists pilling, offers a pleasant and luxurious texture, and creates an attractive knitted appearance. From a production standpoint, good yarn should be easy to knit or weave, maintain stable dimensions and weight, and support efficient manufacturing. We believe that truly high-quality yarn achieves a balanced combination of aesthetic qualities—such as color, texture, and finish—and functional performance, including strength and stability. Yarn that embodies excellence in both form and function can rightfully be referred to as premium, high-quality yarn.

Yarns Collection
List of Yarns Collection

Special Technology

Toyoboshi leverages the expertise cultivated over many years in cashmere spinning to develop a wide range of innovative and proprietary technologies that define the character of our knitwear products.

While placing great importance on the preservation of traditional craftsmanship, we continue to pursue further innovation and improvement, looking toward the future. By honoring the yarn-making traditions and cashmere culture nurtured throughout our history, we consistently prioritize quality at the highest level, while advancing the development of new materials and exploring new forms of expression.

FUR CASHMERE

Cashmere Fiber Tecnology

Inspired by the texture of natural fur, this yarn was developed to capture that luxurious feel.
Created using TOYOBOSHI’s proprietary technology, it achieves a smooth, softly textured finish that expresses the inherent beauty of cashmere—without damaging the fibers.

E-FILU

Spinning Technology

A yarn known for its vivid coloration and exceptional fiber integrity. In its freshly spun state, the fibers remain undamaged. E-FILU is produced through TOYOBOSHI’s original spinning method, designed to preserve and reproduce fibers in their as-new condition.

MAYUCA

Silk – Proprietary Protein Coating Technology

TOYOBOSHI’s unique MAYUCA protein coating technology makes it possible to create silk yarn that is easier to knit and handle than ever before.

CCMI and Quality Control

CCMI (Cashmere and Camel Hair Manufacturers Institute)

The Cashmere and Camel Hair Manufacturers Institute (CCMI) was established in 1984 as an international organization comprised of the world’s leading cashmere spinning companies. Its mission is to “promote the use of genuine cashmere and camel hair products and protect the interests of manufacturers, retailers, and consumers.” TOYOBOSHI is a member of CCMI and serves on its board of directors. Guided by the responsibility and integrity expected of CCMI members, TOYOBOSHI maintains a strict quality control and inspection system throughout the entire production process—from raw material procurement to finished yarn.

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