I use them with a pair Shure SE535, and they are much gentler and feel softer on the skin than the stock foam tips. The quality is not as excellent as the stock ones, which should be no issue since it is mostly a visual offence at the areas where the earwax filter meets the rest of the foam tip. I cannot make out any audible changes, and they seem to have the same level of noise isolation as the Shure ear foams. I will continue buying them since they provide increased comfort.