You can choose your favorite patterns for the fabric of pouches and book covers♡ Perfect for the lining and inner fabric of pouches, and the outer fabric of book covers♪ I work at a sewing company. We make clothes for high-end domestic brands (I'm in quality control). This fabric was purchased at our company's internal sale, which is held twice a year, and is actually used in the clothes of various high-end brands. The chairman said the white and black fabrics are silk, but I'm not an expert on fabrics, so please understand that I can't confirm if that's true. Actually, the satin fabric on page 7 of Inner Fabric ①, and Inner Fabric ② and Inner Fabric ⑱ are also high-quality fabrics actually used in the clothes of various high-end brand manufacturers, purchased at our company's internal sale♡ You can see all the inner fabrics with #リイ中生地♡