I will probably get the red ones too. Poor quality. Ich muss sagen das ich ein großes Talent besitze, Kopfhörer in weniger als 2 Monaten kaputt zu machen. It will easily accommodate prescription orthodics. Gone 4 kms so far and its looking good. Who is figuring it out those sizes, dont they measure the length to determine shoe size equivalents? Now, I have to go through the motion of sending them back and exchange them for the smaller size. They do require a lot of "breaking in". It will restore if you use the same port but will need to be re-configured if you change port. It?s a task to find comfortable footwear especially slippers and these really do fit the bill. Those reviews unfairly represented this issue (in my humble opinion) because they did not mention the ability to change the angle of the front leg (see video on Amazon website) which lowers the front slightly, providing a perfectly level flat bench.