Well, you could wear an abaya, and not wear a head scarf if you want..
Or you can just wear modest things. I mean, no shorts or strapless blouses.
I see alot of people here doing that. I myself, prefer to wear ana abaya. Just so I wouldnt get into anything and its much easier. I dont cover my head though. And the abaya to me isnt such a big deal anymore. Me and my friends go get us fabulous abayas made with whatever decorations we like! Its fun! And fashionable! We get to customly design them! But alot of people I see just wear long skirts or like pants, with long shirts (:
It doesnt have that much sexist restrictions anymore. We just cant drive. And it isnt a big deal if you ask me (: I get DRIVEN :D!!