This nano silver microfiber yarn is a composite of 80% polyester and 20% nylon. After splitting and opening the fiber with the latest technology, it splits into 12-faceted rice-shaped structure fine fibers with a fineness of about one-tenth of natural cotton fiber, and so it has a large specific surface area, which relatively improves the bulkiness, coverage and absorption capacity of the fabric. Anti-virus, antibacterial, comfort, breathability, close-fitting and sweat absorption are its biggest features.