For the price paid I do not think they represent good value for money - better items on the high street for a lot less money. Just to be clear, I knowingly bought these replacement ear pads that arent specifically made for the Sennheiser Momentum 2. I wear a size 10 and ordered the 10, and it fits well. Ran, climbed, got into water! They are comfy, warm, breatheable and nonslip on my parquet and tiled floors. I have very regular feet, Im not between sizes and I have never had any problems with my feet. It is flexible pull-resistant, more durable than original device Update January 2021???? Systems still working great. After 30 minutes of trying I called Choco direct and they told me this was not adjustable. It is pretty easier to install and remove.