The primary ones are the ones that replaced the kanchi ones to suit the hot weather of Chennai, which look exactly like the traditional kanchi sarees, with a solid body with double side borders.
They either come in contrast colors or one solid color with a gold border.
They also come with work (designs) these days as well as embroidary.
I have been seeing half and half lately with 2 colors with designs of geometric patterns and no border.
The best thing is, whatever pattern or style you wear , wearing these sarees are not just comfortable, but will make anyone feel a little more regal and stately.
R @ RU