What does red bottom mean?

Red bottom means a high-heel shoe produced by the French luxury fashion house of Christian Louboutin. The name refers to the bright red color of the soles of Louboutin's iconic pumps. The maison's founder, Christian Louboutin, became inspired to create his now-famous red sole after seeing his assistant paint her nails bright red. He tried applying the polish to a sole and was enamored with the results. Soon, his glossy, red-bottomed heels were all the rage in the fashion world. Find a collection of Christian Louboutin shoes on 1stDibs.