When it comes to unique clothes, there is nothing quite like a double-dyed piece. Double-dyed fabrics are made when a fabric is first dyed one color, then exposed to intense light or heat in a second dye process that creates a darker or richer color. The process of double-dying fabrics was once used to create unique and never-before-seen colors. Today, double-dyed fabrics are used more for fashion than for function, and they are often seen in luxury clothing and accessories.

The process of double-dying a fabric is not quite as simple as it may seem.