Chi Omega and Zeta Tau Alpha
Chi Omega is one of the oldest and yet modern sorority group in U.S. It is also commonly referred to as Chi O. They are very much involved in community service and thus serving the country with the motto of serving the society. Chi Omega has been spreading like wild fire among the student communities who are joining Chi O on the sole objective of serving their society and country through community service.
Another old yet equally popular international sorority institution is the Zeta Tau Alpha. It is founded by nine women in Farmville at State Female Normal School. It has huge member base not only in U.S. but also across the world. Zeta Tau Alpha is right now involved in breast cancer awareness program and has been promoting it very aggressively to let the message reach the public.
Although these sororities involve in social causes, they also have fun by way of organizing special college parties and other fun sharing stuff. One common thing with these sorority is that they all wear the specialized Greek clothes.
You can buy these very specialized clothes like t-shirts, shirts and especially the Greek clothes online through the website of the respective sororities or can design your own clothes too.