Aurifil is 100% Egyptian Cotton, grown in the MAKO region of Egypt on the river Nile. When considering the quality of cotton we can make the comparison to that of wine, different geographic areas offer different attributes to the raw material. Aurifil thread is long staple, which refers to the length of the fibers in the raw cotton Boll, the length of the fibers determine the quality of the cotton. The Aurifil production process is based in Milan, Italy. It’s here where the thread undergoes 15 steps before it becomes a spool ready for use. We carry most of the neutral and a wide variety of colors in 50 wt thread. Join our thread club for a deep discount. Call the store for details on how to join.