生糸 (raw silk) is a natural fiber produced from the cocoons of silkworms, primarily the Bombyx mori species. This luxurious material is known for its smooth texture and sheen, making it highly sought after in the textile industry. The process of obtaining raw silk involves carefully unwinding the cocoons, which can yield long, continuous strands of silk thread. Historically, 生糸 has played a significant role in various cultures, especially in China, where silk production began over 5,000 years ago. It has been used to create garments, accessories, and decorative items, symbolizing wealth and status. Today, raw silk continues to be valued for its beauty and durability in fashion and home textiles.