SIENNA refers to a natural earth pigment derived from a type of clay called "limonite." It is named after the Italian city of Siena, where the pigment was originally sourced, and is known for its warm, mustard hue.This tri-toned fabric, comprised of mustard, ecru, and cinnamon brown, shares a warm and earthy color palette with the pigment, and will resonate with anyone who appreciates the richness and organic appeal of a mustard color!Features microlines that measure 0.5mm - very tiny, and perfect for adding a nuanced texture unlike anything you ever imagined!