Silk is made of an animal (protein) fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and  which is produced by certain insect larvae to form cocoons. . Silkworms lay eggs on special paper and eat only fresh mulberry leaves. Thirty-five days after hatching, the silkworms begin spinning their cocoons. Each cocoon yields 1,000 yards of raw silk thread, which is then spun to produce a “yarn” of silk. The process is time-consuming and delicate, which explains the high cost of silk. Silk is sometimes seen as the most valuable type of fabric and is widely regarded as the most luxurious textile on the planet.. Silk's absorbency makes it comfortable to wear in warm weather and while active. Its low conductivity keeps warm air close to the skin during cold weather. This makes silk is a very smooth, shiny and airy fabric that is suitable for wedding dresses, ties, blouses, suits, and so on. The fiber gets its brilliant shimmer from its structure, a triangular prism that reflects light at varying angles. It is a very strong fabric, but that does not mean that you have to wear. No care Perspiration can easily penetrate side and create permanent stains, also alcohol (think deodorant, hairspray and perfume) can damage the fabric. So do not wear silk on your bare skin and wait for a scent to dry before you put the clothing on. It is advisable to have your silk garments dry cleaned.