It works great, though. The size is larger than expected, but I like it when the heel is not hanging. Noise-canceling is okay, but I won?t know for sure until I can use them in an environment where it is really needed. All I had to do was leave a positive review. I used this for the gym work great for me will recommend to anyone to buy this for gym and running and jogging it?s great That nice clear open sound stage that sennheiser is good at was present but it felt just a little toned down because of the bass, maybe its just me? As far as sound isolating, its not really good. My last shoes died a year ago whilst scrubbing out a barnacle encrusted lido. Probably good indication of a product quality issue when you need a staff of "Return Specialists". Sent them back straight away. J?ai le pied un peu large et ça va très bien.