Pret-a-Porter (Ready-to-Wear) is a term used in the fashion industry to describe clothing that is ready to be worn and does not require any additional alterations. It is a French phrase meaning 'ready to wear' and is often used to refer to designer clothing that is mass-produced and sold in stores. Pret-a-Porter is a popular choice for those who want to look fashionable without having to go through the process of having clothes tailored to their body.