They hang over your ears by means of a movable hook, like on a pair of spectacles, and are loose. I am usually a M and after reading reviews and going by the measuring chart I ended up ordering a S. I like the fit, the color, the style, and the material. I got it when he was 9 and he?s 10 now and it?s still in good condition, except for the shoe lace that did tear. The fit especially. I was happy to find a pair of headphones with a mic that didnt sound like total garbage. They?re getting less comfortable now and I?m sure this work surfaces accelerated the wear on them considering my last job had a flat concrete floor. If you need a great boot pair of boots get these. We are keeping it since my kiddo loves it and will eventually grow into it. The picture doesnt do the size justice, I think.