Bootis is a type of brocade that uses gold foil, silver foil, gold thread, and silver thread as the name suggests.
It is the best fabric in the dozen fabrics and is woven on a Jacquard loom.
Nishijin is the city name of Kyoto where the West army (all side of the Yamana Sune) was placed in the Oonin ral. Nishijin fabric has become synonymous with high quality textiles.