I need headphones for when travelling to and from school, mostly on transit.
I would prefer portable headphones that can fold in some way for easy storage or are just not very big. I am not particularly fond of most IEMs because usually they are not very comfortable and cable noise really bothers me. Most of all I want to be able to normally hear my surroundings and block them out if I so choose(latter is optional but preferred) and most of all not be heard by the others around me.
Currently I can achieve this with IEMs but I have yet to find any that meet my comfort and cable noise standards and I have no idea what headphones would accomplish this.
Also if something exists with these specifications that also has an in-line mic that would just be great but I have high doubts of that.
EDIT: Price range: under $100 if possible.