with the supplied in-ear Comply T500 (light gray) were very good and kept a relatively long time. When buying the black variant here but I had the impression that they have something gross, softer and less elastic anfühlten itself, as if the foam would be slightly less dense at the first touch. Prompt were also ordered all three couples break within a short period of use. I guess times on an aging batch, or the black material is high just slightly worse. Despite fairly good seat In addition, the use of my in-ears (Ultimate Ears triple.fi 10) with these comply plugs still not ideal: are new plugs it, they sit so tightly that it a bit too much pressed with time, old plugs are top, they still slip eg jogging or in the studio too easy so far out of the ear that the necessary soundproofing not more is given. I rise to three sets worn foam plugs therefore now to to ear molds. They have my bandmates all, and all are highly satisfied with it.