I purchased these Sennheiser PX 200 II i headphones on a recommendation from Marco and took them with me on the plane to San Francisco. Not only are they nice and compact, but they are incredibly comfortable.
I typically don’t go for headphones that are on-ear. My ideal headphones are over the ear style after which I I used to prefer in-ear buds — but no more. This was the first plane flight where I wasn’t messing about with my in-ear headphones, trying keep them in my ear, or trying and find a more comfortable position.
They are priced right too.