The pads sadaptent very well on the helmet. However, as the original ones, they are sensitive to heat and easily expand if you sweat a little. In this studio session is frequent. Consider asking your sony mdr in a cool place as soon as you have finished recording if the pads become loose or, worse, décousent. Good product, corresponding to what I wanted. I would buy without problems. Thank you amazon. Fast delivery. PMroduit well packaged.