I love the bisht abaya - it is traditional and the cut is modest yet elegant. I bought two on my recent trip to umrah as I usually wear them to the mosque.
Below, are examples of bisht abayas. The abaya is essentially two very large pieces of material sewn together whereby the main body of the abaya extends over most of the sleeve area. If you were to stand with your arms stretched outward in a bisht abaya it would look like a massive square with short arms sticking out on either side..
Although more expensive than what you would pay over there, Sunnah Style sells some nice plain bisht abayas for those of you who want one but aren't going to Arabia any time soon.
An outfit idea..