The Greeks used a large cloak that they called a Himation. The Himation was about four to six feet wide, and six to eight feet long.
The Spartans were known for a particular variety of Himation that they called a Triboun. They generally wore the Triboun wrapped around the body, under the right arm and pinned on top of the left shoulder. Wearing the Triboun in this manner left the sword arm free to move. Often they wore this as their only garment.
Here
is an illustration of several different ways that a woman could wear the Himation.
First she is wearing it pinned at the shoulder, similarly to the way a man would
wear it. Then she is wearing it wrapped around the head and upper body to protect
against more severe weather.
See the page on Chitons for an illustration.