I use 5mm density silk, it is slightly transparent, it is soft and drapes well. Natural, exceptionally high-quality Excelsior or pongee silk 

has an unpainted surface with pearl iridescences but can be easily painted in any colour. The fabric is strong, light, flowing and plastic. 

This is the thinnest type of silk fabrics for batik. It has a soft shine and it is very smooth. The edges of the silk scarf are hand-processed.