Selvedge denim, also spelled as selvage, is a type of denim fabric known for its distinctive edge that doesn't unravel or fray.
The term "selvedge" comes from "self-edge," as the fabric is woven in a way that creates a clean, finished edge on both sides of the fabric. The origins of selvedge denim can be traced back to the early days of denim production, particularly in the 19th century.