I use these for my airplane travel (actually the earlier UE200 model, but same thing)
http://www.dicksmith.com.au/earphone...nes-dsau-a5078
In-ear noise isolating. When you don't have sound playing through them, they are just really good ear plugs. Comfortable enough to sleep on. Light enough to walk around with oblivious to all around you.
They come with 4 different size ear pieces to suit all ear canals.