An ankle-length robe is a type of garment that reaches down to the ankles. It is also known as a CAFTAN, which is a term derived from the Arabic word 'qaftan' meaning a long, loose-fitting garment. This type of robe is often worn in warm climates and is usually made of lightweight fabrics such as cotton or linen. It is typically decorated with embroidery or other embellishments and can be worn for both formal and informal occasions.