A little roomy but comfortable. Most importantly, they have excellent audio quality. The issue is that every once in a while, I need to press in where the speaker is on the right hand earphone, in order to hear anything properly. She said they were comfortable and she runs with them. I did have a bit of a problem separating the two pieces as it says squeeze the tabs. Its brilliant The unit in hand has had well over 170 hours on the Shanling. Will likely order again. Now on to the CKS5TW, an all-new set of true wireless earbuds from Audio-Technica made for my hearing pleasure. The tie is long enough that I could rethread it (or exchange with rope later) but, I?m saddened by the bottom stitching.