We created a cardigan that can be worn comfortably even in summer, using cotton tulle fabric made with a warp knitting structure. Warp knitting has the firmness and resilience of woven fabrics, while also possessing the elasticity of weft knitting, making it resistant to losing its shape. This time, we visited Fukui Warp Knitting Industry Co., Ltd., who knitted the fabric for us, and interviewed them about the manufacturing process. Fukui Warp Knitting is a long-established manufacturer of warp knitted fabrics, founded in 1944, and their technology is attracting attention and being adopted not only in apparel but also in medical fields. We had them use this technology, which Japan is proud of, to create cotton tulle fabric for us. Warp knitted materials are often used for car seats, sports shoe uppers, and swimwear, taking advantage of their strong, stretchy, and shape-retaining properties, and synthetic fibers are often used, but this time we ordered yarn made from 100% cotton, a natural fiber. Unlike synthetic fibers, natural fibers tend to fray during the knitting process, which can clog the thread holes or cause the thread to break. Therefore, we use compact yarn with a smoother surface and further reduce the knitting speed during production. As a result, natural fibers are inherently less efficient. Also, the quality of natural fibers varies depending on the region and year they are harvested, so the tension and speed need to be adjusted each time. However, the tulle fabric, carefully knitted over time, becomes a unique fabric with just the right amount of firmness and a dry texture. And a cardigan made from such fabric has the transparency and breathability unique to tulle, resulting in a high-quality finish that is perfect for summer. It's designed to be easily thrown over a T-shirt or one-piece, so it will come in handy when you feel a little chilly, such as in a store.