Excelente calidad originales That in itself is redeeming imho . You barely know it is there. that might detach, plus, the top is the same sort of foam, so there is some "give" to it. The headphones that come with it were also a large quality increase too. Hell grow into them, and the adjustable straps on the top help. Well, now when I wear it without socks, my feet slides a little because I stretched them out with socks on. Great for a home gym! These earbuds are not recommended as they do not seem to hold a charge. Get these to save money unless you need REALLY loud music or cant tolerate the cord between them, those two things were not worth an extra $120 to me.