I found this to be true to size. \(^@^) I didnt want to experiment with more expensive earbuds and these seem to do as I expected. Not sure why it came in a plastic bag. My first time wearing the pull on the heel broke away. They are a decent deal for the price. After i wild using it, i noticed that the sound quality is awsome. UPDATE - After about 6 months of daily use, the earpad on one side split open along the row of airholes, revealing the foam padding. There is also a small delay in the sound since the AirFly has to convert an analog signal into a digital one to send over bluetooth to your headphones. When I first got them they were not the dream-worthy fit that everyone raves about but I stuck with them and continued to adjust the straps and wear them on walks in the park near my house until it snowed and I couldn?t anymore.